Mercedes crankshaft pulley replacement, made easy
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Our expert insights into crankshaft pulley replacement
What does a crankshaft pulley do?
The crankshaft pulley is mounted on the end of the crankshaft. Its purpose is to transmit mechanical power and torque through the pulley system to turn the drive belts that operate the engine accessories (alternator, air conditioning compressor, etc.).
What are the symptoms of a bad crankshaft pulley?
Below are the top three symptoms that could indicate you need to replace your crankshaft pulley:
Engine vibrations
Alternator failure - flickering headlights, car struggles to start
Rough engine idle
What happens when we do a crankshaft pulley replacement on your car?
Our certified mechanics will:
Check the condition of the crankshaft pulley.
If necessary, they will replace the crankshaft pulley.
Advise if any other related parts need to be replaced.
Test drive the car to check everything has been fitted correctly.
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What does a crankshaft pulley do?
The crankshaft pulley is positioned on the end of the crankshaft. It transmits mechanical power and torque through the pulley system which then operates the engine's accessories (alternator, air conditioning compressor, etc.) through the use of a rubber belt or system of belts.
The crankshaft pulley is also essential in ensuring other engine components operate in unison to allow the vehicle to run smoothly. Doubling up as an internal dampener, crankshaft pulleys also reduce the risk of damage to certain engine components as they reduce the vibrations caused as the engine runs.
The car crankshaft pulley may seem like a minor part in a vehicle, but it is actually a very important part and is vital in the smooth operation of a healthy car.
Mercedes-Benz
Mercedes-Benz is a German global car manufacturer and a division of Daimler AG. They were established over 100 years ago in 1926 and have grown to be the biggest selling premium vehicle brand in the world.
How popular is Mercedes in the United Kingdom?
The number of Mercedes cars on the road in the UK continues to rise, reaching 1.9million by the final quarter of 2018. There are almost 5 times as many Mercedes cars on the road as there were in 1995, showing just how popular this marque has grown to be.
Helping these powerful statistics on their way, the Mercedes A-Class was announced as the 8th best selling car in the UK in 2018. The premium family hatchback is vying for position against the ever-popular VW Golf—the current leader in this class.
Premium executive models of every shape and size
Mercedes deliver hatchbacks, saloons, estates and coupés at every size from their A- to E-Class ranges, as well as executive SUVs, the V-Class MPV, and of course, a more than desirable selection of convertibles and roadsters.
With prices rising to well over £100k, Mercedes cars are a great contender as the executive car of choice.
Mercedes-Benz: Giants of Formula One
Mercedes has always been a keen player within the F1 championship, taking their first 2 titles back in 1954 and 1955. Through the 1990s they joined forces with McLaren as an engine provider and part owner, bringing titles for both Mika Häkkinen and Lewis Hamilton and a constructors championship in 1988.
Their current and outright domination of the sport began in 2014, as a team in their own right, it has featured 5 straight constructors titles, with Lewis Hamilton taking 4 world championships and Nico Rosberg taking the other in 2016.
How often should a crankshaft pulley need replacing?
A crankshaft pulley can last the lifetime of your car without failing, however unexpected issues can occur which may lead to your pulley needing to be replaced. In general, crankshaft pulleys are not part of regular maintenance so shouldn’t have to be repaired or replaced often
The car crankshaft pulley may seem like a minor part in a vehicle, but it is actually a very important component and is vital in the smooth operation of a healthy car. Therefore if you experience any of the symptoms above you should have your car inspected by a mechanic.
What happens during a crankshaft pulley repair?
Our certified mechanics will:
Check the condition of the crankshaft pulley.
If necessary, they will replace the crankshaft pulley.
Advise if any other related parts need to be replaced.
Test drive the car to check everything has been fitted correctly.
What causes a crankshaft pulley to break?
When an engine has a bearing failure, this can cause issues for the crankshaft and the pulley tension. Similarly, if the belt tension is too tight or the auxiliary equipment has failed the pulley will also fail.
Most crankshaft pulleys also have a rubber element that is prone to deterioration as it is exposed to continuously changing conditions. If this wears out a replacement pulley will need to be fitted.
What are the symptoms of a failing crankshaft pulley?
Usually, there a few signs you can look for:
Engine vibrations
Alternator failure - flickering headlights, car struggles to start
Rough engine idle
Difficulty moving the steering wheel
Difficulty changing gears due to gearbox damage
How often should you replace your crankshaft pulley?
Generally a crankshaft pulley should last the lifetime of the vehicle, however wear and tear does occur so occasionally one may need to be replaced.
What happens during a crankshaft pulley repair?
Our certified mechanics will:
Check the condition of the crankshaft pulley.
If necessary, they will replace the crankshaft pulley.
Advise if any other related parts need to be replaced.
Test drive the car to check everything has been fitted correctly.
What is the average life of a crankshaft pulley?
A crankshaft pulley can last the lifetime of your car without failing, however unexpected issues can occur which may lead to your pulley needing to be replaced. In general, crankshaft pulleys are not part of regular maintenance so shouldn’t cause you too many issues.
Can you drive with a broken crankshaft pulley?
You should avoid driving with a failing crankshaft pulley as it can cause serious and expensive damage to your engine. If the pulley breaks and the engine continues to run, serious damage could be done to the crankshaft, which would be a very extensive and costly repair. Other belts and components riding on the pulley could also break or become damaged.
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