Industrias Dolz presents its latest in-house development: the A255VD switchable pump (OE 04L121011), equipped with the innovative SHC (Switchable Hydraulic Control) technology and protected by a global DOLZ-exclusive patent.
This new variable pump is designed to meet the demands of modern engines, intelligently managing engine cooling through a switchable hydraulic control system. Thanks to SHC technology, thermal efficiency is optimized, reducing fuel consumption and harmful emissions.

The A255VD reference covers a wide range of VAG Group vehicles, with key applications in brands such as Volkswagen, Audi, SEAT, and Skoda, equipped with 1.6 and 2.0 TDi engines.

After successfully passing stringent performance, sealing, and durability tests at our facilities, the pump has also been tested under real-world driving conditions by installing the A255VD in compatible vehicles.
Following several months of intensive use, results have been outstanding, confirming not only the reliability of the design but also its excellent performance in real driving scenarios. This additional validation phase further strengthens market confidence in the quality of the company’s proprietary developments.

The A255VD switchable pump is now available—a 100% Made by DOLZ product, the result of the joint efforts of our R&D team and the company’s strong commitment to technological innovation and continuous improvement.

With this new addition to its product range, DOLZ reinforces its commitment to quality, efficiency, and the development of proprietary solutions that add real value to the aftermarket.

About Industrias Dolz

With more than 90 years of experience, Industrias Dolz is a leading manufacturer of water pumps, timing kits, and engine components for the automotive aftermarket. Present in over 70 countries, it is part of the Litens Automotive Group, a global benchmark in belt drive systems and thermal solutions.

Before you go, don’t miss out! Download this month’s New to Range with over 53 fresh references– just one click away!

La entrada DOLZ A255VD Switchable Pump with Patented Technology se publicó primero en Industrias Dolz.

La entrada Discovering the main water pump components se publicó primero en Industrias Dolz.

La entrada Peculiarities of an auxiliary water pump se publicó primero en Industrias Dolz.

What does the water pump impeller do?

In a water pump, the impeller is the part that distributes coolant throughout the cooling system of the vehicle. And it must be properly designed to provide the correct system pressure for all driving conditions.

The rotating vanes on this small, round disc assist in moving the coolant through the cooling circuit and thus cool the vehicle’s engine. When this component fails, the coolant supply is cut off, causing the engine to overheat. As you know, the health and efficiency of your vehicle’s engine requires an optimal temperature. Without it, it could cause serious and irreparable damage.

The impeller is made up of several curved blades. The coolant flows through the turbine along its axis and escapes between the fins along the circumference.

Keep reading: Types of automotive water pumps

Water pump impellers: Types

All water pumps are not the same. Some are made with plastic impellers while others have metal.

The impellers manufactured in DOLZ are made from injected plastic, cast iron or aluminum passivated, depending on the original OEM design. Besides, factors such as diameter, number and height of the fins, and other specifications determine the type of impeller.

So, let’s get to know which are the two main types of water pump impellers:

1. Open turbine

An open impeller has blades that are open on both sides and also lacks a protective cover. It is a type of turbine that, as a general rule, is found in smaller water pumps and that also are not subject to much stress. Although there is also the possibility of finding them in larger water pumps.

2. Closed turbine

On the other hand, the closed impeller is completely covered at the front of the part and offers maximum resistance. They are generally the most popular type of turbine for large pumps that move coolant, although smaller water pumps can also be found. Thus, thanks to its design, axial thrust is reduced, which can increase the useful life of the bearing.

How to know if a water pump impeller is malfunctioning?

Though impeller failure is not common, it can happen when the impeller blades slip when the engine is started. Impeller corrosion can also occur from unsuitable or deteriorated coolant. So, when you have a bad impeller, you can have a lot of troubles.

If your impeller fails, the pump will be unable to provide coolant to the engine, causing it to overheat. You may be able to avoid serious difficulties if you notice that your water pump is failing early on. However, if you overlook a bad impeller in time, the consequences might be disastrous for your engine.

There are five symptoms that your cooling system needs attention:

• Pump leakage

• Slow re-priming

• Unusual noises or vibrations

• Overheating

• Reduced pump flow

Article of interest: Failing car water pump: Signs

It’s also possible for the impeller to become loose on the shaft, so although the impeller looks well, it doesn’t pump anything!

Dolz TIP: You will pay the price later if you keep your water pump impeller going with patchwork repairs and makeshift remedies, and you have to pay it later. While you may be under pressure to keep production going, these temporary repairs will not prevent the pump from failing.

Think of it like insurance and protecting your investment. For that, DOLZ recommends replace the water pumps and prevent future problems for your vehicle.

If you need further information or have any technical question with the water pump impeller, please contact us and our team will help you.

Fresh Stock! September’s New-to-Range: DOLZ New-to-Range September 25

La entrada The importance of a water pump impeller se publicó primero en Industrias Dolz.

Both internal factors (such as failed car engine parts) and external ones (such as cold weather) can have an impact on how long you should warm up your car and the vehicle’s temperature issues.

Fortunately, there are a series of indicators and tests that can be performed to understand car engine temperature and the potential problems associated with it. Keep reading to find out.

Car temperature: how does it work?

Average car temperature ranges should be between 195 degrees and 220 degrees. These can vary depending on vehicle conditions and operations (for instance, they might change if the air conditioner is operating).

If we are faced with an engine that tends to overheat, this could cause more serious faults such as the cylinders and piston rings ending up losing their hermetic seal. On the contrary, if the engine does not attain its operating temperature quickly when starting (about 15 minutes), there is a problem: when the engine is not capable of reaching its temperature, this will result in greater wear and fuel and oil consumption. 

There are a number of system components to ensure the normal operating temperature of a car engine, including: 

• Coolant
• Thermostat
• Water pump
• Radiator
• Radiator cooling fan
• Cooling system pressure cap

This set is part of the cooling system, essential for the engine, in charge of maintaining consistent car temperature. This works as follows: when the engine operates, it warms up; the components mentioned above will then be in charge of cooling it down. 

System malfunctions may lead to a lack of cooling down and extreme temperatures that could end up in costly repairs or replacements. This is the reason why car temperature checks should always remain a top priority.

Keep reading: Maintain to Retain! How preventive maintenance can benefit your car

How to detect car temperature problems: key points

Engine coolant: is it enough?

The engine coolant, commonly known as antifreeze, is typically made of a 50/50 mixture of antifreeze and demineralized water, and is responsible for correct car temperature, avoiding overheating and freezing, as well as corrosion.

For its replacement, it is always advisable to consult your owner’s manual for this specification as to what you need, although as a general rule it is necessary to change the coolant every 40,000 kilometers or every two years.

Certain conditions might cause it to deteriorate or for its levels to be inadequate.

Low coolant levels can take place because of internal or external leaks. In this case, they might be responsible for engine overheating. This is the reason why coolant levels should be consistently tested. In order to do so, look for the coolant overflow tank and check that the levels are between the lines of “low” and “high”.

Additionally, car owners must ensure they use the specific coolant that is designed for their vehicles. 

Checking the thermostat

Car thermostats consist of a valve between the engine and the radiator that are responsible for regulating the flow of coolant. In order to do so, they open or close a valve depending on engine conditions: the valve will open when car temperature is at its highest, letting the coolant in and preventing the engine from overheating. 

As a consequence, if the thermostat doesn’t work properly, car engine temperature can be inadequate and engine components might be severely damaged. In this case, the thermostat must be replaced.

To learn how to test thermostat car, first make sure the engine is cool. Then remove the radiator cap to check coolant flows and start the car. At the beginning, it shouldn’t flow as the engine hasn’t reached operating temperatures. However, if the coolant doesn’t start flowing, it will mean the thermostat is in a closed position and might be damaged.

Defective radiator

When a radiator gets clogged, coolant will stop flowing into the water pump, thus avoiding the heat from the coolant to dissipate into the outside air. The direct result of this is engine overheating and malfunction directly related to extreme car temperatures.

In order to check if there’s a defective radiator, first ensure the engine is cold. Remove the radiator cap and check if debris has built up inside and outside the radiator. Internal clogs will need a radiator replacement, while outside blocks can be cleaned using compressed air.

Also, if the engine overheats, but the coolant still flows through the radiator, this is a serious concern: the cause could be a faulty water pump or leaks in the circuit.

The heart of the system: the water pump

The engine water pump represents a key element in an engine’s functioning, as it’s in charge of circulating the coolant through the engine and the radiator.

There are two clear signs that indicate a defective water pump and it will probably need a replacement:

• Leaks from the passenger side of the engine
• Screeching or high-pitched noises.

Other ways to detect a faulty water pump include: 

• Seeing if the coolant is not circulating by removing the pressure cap from the cooling system. However, as we’ve seen above, this might also be related to a faulty thermostat, so this possibility must also be considered.
• A visual inspection of the water pump might reveal signs of leakage, such as green or white tracks, as well as wetness.

Don’t Miss our Latest New-to-Range: DOLZ NTR March 2025 41+ Part Numbers! 

Best ways for warming up your car temperature in the wintertime

The cold is not usually an ally for most of the components of the car. And although there are many myths about warming up our vehicle’s engine more quickly or efficiently, the truth is that the best way to properly warm up the car is to warm up the engine just long enough for the car to be comfortable and safe during the driving.

For this reason, at DOLZ we recommend the following two practices:

1. Once inside the vehicle, start the vehicle and let the engine run for 30 seconds. That’s all it takes in major vehicles.
2. A constant and smooth driving during the first kilometers of the march and working the mechanics controlling the car with sudden unintended acceleration. With this we will obtain an adequate proportion of air and fuel, avoiding excess fuel consumption.

These are two key decisions in ensuring that an engine warms up progressively and efficiently.

La entrada Car temperature: Key aspect in a vehicle’s performance se publicó primero en Industrias Dolz.

This belt should not be confused with a timing belt, which serves a completely different purpose. While the timing belt keeps the crankshaft and camshaft in sync., the auxiliary drive belt is what keeps the engine accessories running smoothly and efficiently.

Auxiliary drive belt: What is it?

An auxiliary drive belt consists of a long rubber belt that propels power to engine components via a system of pulleys that are driven by the main crankshaft pulley. These engine components include:

• Alternator
• Air conditioning compressor
• Power steering pump
• Water pump (in some vehicles)

Its wide, flat, and often toothed design makes it a requisite for today’s engines, as it can power different accessories at once. This is essential in modern engine bays where space is restricted, as opposed to multiple drive belts used mostly in outdated car models.

Keep reading: Understanding timing belt components and how to maintain it

Poly-V belts are now made of high-quality reinforced rubber, (EPDM) Ethylene Propylene Diene Monomer rubber ensuring a long service life. Although like timing belts, these are also subject to wear, so they will deteriorate over time.

As the auxiliary drive belt is naturally long, it is wise to have idler pulleys and/or a tensioner pulley in it. These keep the belt tensioned so that it does not deviate from its direction, and so that it applies the exact friction to the pulleys.

Difference between auxiliary belt and timing belt

Understanding the distinction between the auxiliary drive belt and the timing belt is important:

• Timing Belt: Synchronizes the movement of the camshaft and crankshaft to ensure proper engine operation, and failure can cause catastrophic engine damage.
• Auxiliary Drive Belt: Powers accessories like the alternator, power steering pump, and air conditioning. A failure will disrupt accessory function but generally won’t damage the engine itself.

Article of interest: 5 warning signs it’s time to replace the timing belt

What happens when the auxiliary belt breaks?

When a car’s auxiliary drive belt breaks, all the accessories that depend on it will stop working or not work as they should. This can lead to various issues, including:

• Loss of power steering to A/B escape, making the vehicle difficult to control.
• Air conditioning failure, resulting in a lack of cool air.
• Battery drain, as the alternator stops charging the battery.
• Engine overheating if the water pump is driven by the belt.

Unlike a broken timing belt, a broken poly-v belt will not directly cause catastrophic engine damage, but can still cause significant inconvenience and safety risks.

Problems associated with auxiliary drive belts

Serpentine belts can fail due to various reasons, including:

1. Belt wear: Over time, the belt’s rubber material deteriorates.
2. Misalignment: Often caused by worn pulleys or tensioners.
3. Contamination: Oil or coolant leaks can weaken the belt material.

Complete belt failure is often the result of ignoring these problems. The most serious complications occur when the drive belt breaks completely as a result of a belt in poor condition, or a problem associated with one of the components driven by the belt; for example, a failure of a bearing in a pulley.

Signs of a malfunctioning auxiliary drive belt

When inspecting the poly-v belt, pay attention to the following indicators in order to confirm whether the drive belt needs replacement:

• Deep cracking and wear in the ribs and spine of the belt.
• A shiny, glazed and/or frayed appearance showing signs of age
• A hardened surface showing a substantial loss of flexibility.
• Belt contamination with oil or coolant due to other vehicle issues.

Although all these potential issues can be easily detected during a routine inspection, every auxiliary belt car has its unique characteristics. For instance, an EPDM belt will not crack like traditional neoprene rubber belts and will need to have the rib valleys inspected with a belt wear gauge. So, take each individual model into consideration.

Keep learning: Car temperature: Key aspect in a vehicle’s performance

Consequences of a malfunctioning aux belt

Failure in an auxiliary drive belt can cause many different consequences on your engine and can be potentially dangerous. When inspecting the auxiliary drive belt system, pay attention to the following signals to confirm if the drive belt needs to be replaced:

• Difficulty in steering the vehicle or no power steering at all.
• Engine overheating and unstable marks showing on the temperature gauge.
• A malfunctioning air conditioning with no cool air blowing out from the vents.
• A dying battery that will eventually die without the alternator’s charge.
• Squealing sounds in the front area of the car and/or a whine from the engine.

These problems can escalate quickly, so timely maintenance is essential.

Dolz: the perfect dealer of auxiliary drive belts

Dolz has been providing top-notch, OE-equivalent parts for passenger cars, trucks and commercial vehicles since 1934. With nearly 90 years of knowledge and experience, our presence has now expanded to more than 70 countries around the world.

Following our mission and completing our wide range of transmission products, we recently introduced our range of auxiliary drive kits available for dealers and workshops around the globe. Designed and produced following OE specifications, our kits offer greater engine performance and comfort.

In order to make your life easier and to secure effortless replacements, these kits include all the necessary components for a professional repair, all in one single package: 

• V-ribbed belt or auxiliary drive belt
• Pulleys and idlers
• Drive tensioners 
• All the necessary accessories when needed.

Contact us so that we can facilitate a tailored solution, as well as guidance throughout the whole selection process.

La entrada Auxiliary drive belt: What is it and why should you care? se publicó primero en Industrias Dolz.

When does a timing chain get damaged?

Unless there is a specific fault, the timing chain should be replaced between 80,000 and 120,000 miles. Chain problems are frequent in automobiles with increasing mileage. If you’re driving an older car or one with a lot of miles on it, keep an eye out for signs that the timing chain is failing. Because the timing chain might break and require replacement, it’s critical to be able to spot the symptoms and have it serviced before it completely fails.

Do you need more info about Timing Chains? Click here!

Timing chain replacement: Warning signs

Timing belts must be replaced on a regular basis, but timing chains do not. There’s no reason to alter the timing chain unless it’s damaged, strained, or otherwise affected. If there is a problem with the timing chain, your car will most likely have one or more issues.

The following are signs of a faulty timing chain:

• Starting the vehicle is difficult.
• Noise in the timing chain.
• Check engine light illuminated.
• Engine misfires and sluggishness.
• When the engine is idling, it vibrates or shakes.
• The engine will not start.

There’s a chance you’ll notice a noise coming from the timing chain cover region. A loose timing chain, which could be caused by a malfunctioning timing chain tensioner, guide, or other faults, is frequently the source of this noise. If you overlook the early warning signs, more significant problems will develop; therefore, make sure to inspect the timing chain as soon as you notice a noise coming from its mounting place.

Keep reading: The different timing chain systems

Rattling noise during start and idle

The rattling or clattering sound produced by the stretched chain may also become annoying. With the hood open, this sound will be audible, and it will change with engine speed. A broken timing chain may hop around on the crank and camshaft gears, generating rattling and knocking noises from the front of the engine, or it may hit the timing chain cover. A broken timing chain will allow the valves to come into contact with the pistons in severe failures on some engine models, resulting in very loud knocking and banging noises, catastrophic engine failure, and damage to the valves and pistons.

Broken plastic timing guide and metal shaving

Small metal parts can break off your timing chain and end up in the oil pan if it’s worn out. If your mechanic notices little pieces of metal inside the oil as it is drained or in the filter when you get your oil changed, it could signify your timing chain is starting to fail. However, there are a variety of other issues that might result in metal shavings in the oil. If you discover metal in your oil, contact your manufacturer or service provider as soon as possible for an examination, precise diagnosis, and suitable repair.

Lack of power

Because the valves are not opening and shutting at the proper times, a timing chain that has stretched sufficiently to skip some teeth on the sprocket will not allow the combustion chambers to pull in the necessary quantity of fuel and air mixture. This results in a considerable loss of power and reduces the engine’s responsiveness to accelerator pedal input.

Timing related codes

By controlling when the intake and exhaust valves open and close, the variable valve timing system improves fuel economy and engine performance. The ECM adjusts the camshaft(s) through the use of oil control valves, commonly known as VVT Variable Valve Timing control and solenoid valves.

The drivability of your car is greatly impacted by timing-related codes. Increased engine stalling, rough engine idle, decreased fuel economy, and rattling/knocking noises from the engine are the most typical issues. Continuing to drive the car in this situation could result in serious damage to several internal engine components.

The Bottom Line

The timing chain is an essential component of any engine, and your car would be useless without it. If your timing chain breaks while you’re driving, your vehicle’s engine is likely to suffer catastrophic damage. If you detect any of the danger signals described above, the best way to avoid major engine damage is to have your timing chain replaced by a skilled mechanic. You may save thousands of dollars and considerably extend the life of your engine by being proactive and aware.

At Industrias Dolz we have developed a new range of timing chain kits; they are much quieter and promote longer transmission life. In addition, they do not require scheduled maintenance. All Dolz kits meet all OE quality standards and include all components required for a professional repair (timing chain, crank sprocket, cam sprocket, tensioner, guides, oil seal, VVT…).

Contact us if you need further information about our timing chain kits or about the timing chain replacement.

La entrada Timing chain replacement: when it’s necessary? se publicó primero en Industrias Dolz.

These car parts are subject to great forces inside the vehicle’s engine. For this reason, every vehicle that has a timing belt will require a new timing belt replacement at some point during its life. Without a fully functioning timing belt, the car’s engine won’t be able to run properly.

When to replace the timing belt?

Timing belts are strong and highly efficient but being constantly under stress and operating in high heat environments make them impossible to last forever. However, drivers widely forget that timing belts must be replaced on a regular basis. Then, when to replace a timing belt?

The largely depends on the manufacturer and model of each vehicle, so first thing to do is check your owner’s manual for specific recommendations.

In many cases, there might be no apparent indication that a timing belt is becoming worn. Often, it just breaks. That’s why, when it comes to timing belts, prevention is by far the best solution.

Related content: Expert advice: when should you carry out a car timing belt replacement

5 warning signs to detect timing belt failure

There are a few warning signs that can help you diagnose when you need a new timing belt, but it is important to remember that prevention is the key to an optimal car maintenance, as there are no certain clues to indicate a worn belt that may be close to snapping.

Listed below are five key signs to be aware of that may help you determine if it’s time to check and get a new timing belt.

1. Engine misfires

Timing belts run through a system of pulleys that operate both the camshaft and the crankshaft. The teeth they use for this are meant to grip and move smoothly, but if the timing belt starts to wear out, it may create a repetitive clicking or ticking sound coming from inside the engine. 

2. Smoke after starting the vehicle’s engine

Belt wear and stretching damages the catalyst, as the fuel is not completely burned in the chambers due to an incorrect composition of mixture fuel. That means: all the fuel that has not been consumed is directed to the exhaust system. If you hear a clicking noise when starting the engine and see black smoke coming from the vehicle’s exhaust pipe, this indicates an incorrect fuel composition that may be due, among many others, to damage to the timing belt.

3. Difficulty starting

A worn timing belt will affect your engine’s starting speed as it is attached to the pulleys that drive the crankshaft. Eventually, the belt can slip on the camshaft drive causing the engine cylinder to open and close at the wrong time.

The stretching or wear of the timing belt will cause it to skip one or more teeth, and therefore as a result the engine ignition is lengthened, in addition, as we have already mentioned, the jumps or slips of the belt cause the desynchronization of the engine.

4. Belt appearance

If we are inspecting our vehicle, or we are about to make a visit to the garage, the first sign that will indicate that the belt is worn is its appearance. It is possible to see small cracks throughout the entire piece. If the cracks are enlarged, then the internal threads of the cracks can be seen. In addition, another sign is the detachment of small pieces or fragments of the belt material that will end up falling inside the entire engine.

5. Loss of voltage

Another sign of advanced belt wear is high elongation. When this occurs, there is a loss of tension which makes the deflection force of the belt less. This will lead to belt slipping in the first place or worse, belt dropping during engine operation. Belt slippage or skipping will lead to engine out of sync and this can lead to piston/cam collision resulting in catastrophic engine failure.

DOLZ TIP:

Timing belts must be in good shape order for your car to properly start. If your belt has been damaged, you will most likely hear the starter engage when you turn your key but the engine will not ignite.

In case your timing belt is broken inside, it won’t be possible for your engine to start working, since your timing belt is what engages your crank and camshaft, it won’t turn over. If this happens in addition to any of the above warning signs, it is probably that the problem is due to a snapped timing belt.

Calling a professional for advice is the only sensible solution here. If the problem is caused by the timing belt, there is a high chance it results in the damage of other engine compartments, so the situation could be rather serious.

Keep reading: Things to consider when choosing a timing belt kit

Dolz Timing Belt Kit, the best replacement option

The replacement of the water pump or the timing belt are two of the most common operations in a garage. In our experience, it is much more cost-effective and safer to replace them for preventive reasons than to wait for them to break down and stop working altogether.

In addition, by replacing these two components together, you will save on labor, reduce the number of visits to the workshop and will improve both the quality and safety of the intervention.

DOLZ offers premium timing belts; 100% tested and equivalent to OE:

• Timing belt: resistant to changes in temperature, water and oil, thus ensuring an optimized durability.
• Idlers: high-quality raw materials and grease to ensure the highest efficiency.
• Water pump: manufactured with a silicon carbide seal. It is designed following the original specifications

Do you need to replace your timing belt? And the water pump? Contact us to know more about our full timing belt kits, they include all necessary components for an optimum timing belt replacement.

La entrada 5 warning signs it’s time to replace the timing belt se publicó primero en Industrias Dolz.

Temporary leakage: key aspects

First of all, it should be noted that the watertightness of all water pumps made by Industrias Dolz is checked by a calibrated machine which automatically detects It introduces air at 1 bar of pressure on the surfaces of the water pump which have been in contact with the coolant for a specific time. After a period of adjustment, it checks that the drop in pressure is less than 3.5 cm3 /min. That is why the pumps manufactured by Dolz do not leak under proper operating conditions.

Adequate operating conditions

To prevent future leaks and ensure the longevity of your cooling system, it’s essential to maintain it regularly and know what optimal conditions the coolant should meet:

1.- There must be no solid particles dissolved in the coolant of less than 0.5 mm.

These particles can get between the two contact faces of the dynamic seal and cause a temporary leakage in the water pump due to the imperfect coupling of the two friction rings. When the two contact rings of the dynamic seal are in constant rotation these particles can be expelled from them by the centrifugal force of the rotation.

2.- The main function of the spring which pushes the graphite ring against the silicon carbide ring is to balance the hydrostatic pressure of the coolant, keeping the two rings of the dynamic seal in constant contact. Temporary variations in pressure can cause a hydrostatic imbalance in the working area of the dynamic seal and produce a leak in the water pump.

For all these reasons, to avoid this phenomenon, there must be no air in the circuit. In addition, it will be necessary to check that the coolant in the expansion tank is between the maximum and minimum levels.

Cross section of dynamic seal

Coolant stains at the water pump outlet pipe

If you observe coolant stains by the water pump’s drain hole, you could think that the pump is leaking, but this phenomenon is normal. The two contact surfaces of the dynamic seal are in a state of constant rotation and friction. In normal working conditions allowed to permeate between them in proportion to internal pressure.

Under normal working conditions, a small film of coolant liquid is allowed to enter between them due to the internal pressure gradient. The coolant acts as a lubricating medium which reduces both the wear and the heat produced by the friction of the two contact surfaces. Normally the liquid evaporates before reaching the last of these contact rings, thereby not producing any leakage from the seal.

What to do if you observe small temporary leakage stains from the water pump

• If there are small coolant stains near the water pump drain hole you may feel that the pump is leaking.
• When small amounts of coolant, normally less than 10 cc, are coming from the water pump´s drain hole must check that there is no air in the circuit and there are no residue particles in the car´s coolant expansion tank.

If you carry out these operations and the leakage persists, then you must remove the water pump to be analyzed at the factory.

Related content: Emerging Car Brands | DOLZ x BYD DR EVO GEELY MG 

Dolz, without limits

At Industrias Dolz we guarantee the quality of our products through the different phases of their production. Our extensive experience as manufacturers of water pumps together with the constant improvement and innovation of our production processes allows us to ensure the perfect adaptability of our products.

In this way, we ensure that the water pumps comply with all existing regulations for adaptability and functionality, always equivalent to OE Quality (art. 1 EC Category Exemption Regulation 1400/2002).

La entrada Temporary Leakage: water pump Inspection and Diagnostic Tips se publicó primero en Industrias Dolz.

La entrada The importance of an automotive thermostat in a car’s cooling system se publicó primero en Industrias Dolz.