Mercedes W204 Belt Diagram (2024)

FAQs

Where is the serpentine belt routing diagram? ›

A: Commonly a belt routing diagram sticker is on the underside of the hood or in the engine compartment. If there is no diagram, make a sketch of the belt and pulleys before removing the belt. This will help you re-route the new belt correctly.

Some vehicles have the serpentine belt diagram located on a decal somewhere in the engine compartment. But if your car does not have a decal, you can easily look up the diagram in a repair manual or repair database. Another option is to take a photo of the old belt before removal.

The Mercedes-Benz C-Class (W204) is the third generation of the Mercedes-Benz C-Class. It was manufactured and marketed by Mercedes-Benz in sedan/saloon (2007–2014), station wagon/estate (2008–2014) and coupé (2011–2015) bodystyles, with styling by Karlheinz Bauer and Peter Pfeiffer.

Most modern cars utilize one belt called a serpentine belt, to connect all accessories. If the belt fails you will not only lose A/C, but your alternator, water pump, and power steering pump will also stop working.

EXAMPLE: 6PK1003 » 6 - This indicates the number of ribs on the belt; therefore, this is a 6-rib belt. » PK – The “P” indicates a metric designation, and the “K” indicates the belt is automotive per SAE J1459. » 1003 - This is the effective length of the belt expressed in millimeters.

If the belt is already out of place, locate the driver's manual or the under-the-hood placard, where you'll find a sketch of the routing.

Serpentine belt replacement is easy because today's automatic drive belt tensioners eliminate the need to loosen bolts or pry components into position for retensioning. Just rotate the tensioner, remove the old belt and install a new one.

How Does The Serpentine Belt Work? The serpentine belt, driven by the crankshaft pulley, is connected to the engine. From there, it wraps around multiple other pulleys that power different components in the engine, such as the alternator, air conditioning compressor, power steering pump, and water pump.

If you pop your hood, you will be able to see a black rubber belt that winds around several mechanisms in front of the engine. This is the serpentine belt. While the serpentine belt is clearly visible, the timing belt is not visible. It is actually located behind the engine.

The reliability has been really good with only the common faults really being an issue for me: 1 Fuel injector gave in and stopped partially working putting the car in limp mode.

What does C stand for Mercedes? ›

The first letter in a Mercedes-Benz name represents body. An A means a hatchback; B, a multipurpose vehicle; and C a coupe. Class. Subclass.

While 100,000 miles used to be regarded as high mileage, hitting six digits no longer means your vehicle is at the end of its life. Today, thanks to advances in technology, many Mercedes-Benz vehicles can last well beyond the 100,000-mile mark with proper care.

Driving without the belt won't hurt anything.

Serpentine belts don't require tension adjustment. Instead, a spring-loaded or hydraulic tensioner has a pulley that leans against the belt. In addition to the pulley on the tensioner, there may be another idler pulley that routes the belt.

No engine is complete without the serpentine belt. The serpentine belt, also known as the alternator belt, is one of the better-known engine belts, along with the timing belt. It gets its name because of its shape, and how it snakes around your engine.

Place the target tool (the other part of the laser alignment tool) on the pulley that needs to be checked. Rotate the target pulley and observe if the laser is shining on the target. The laser should meet the target tool right on the dedicated center marking. This indicates a properly aligned pulley.

Depending on the engine in your vehicle, the serpentine belt may be located at the front of the engine bay, or it may be along one side. There may be engine covers in the way, so be prepared to remove them if need be.

It is a common recommendation from belt makers to always put a belt (cogged, V, poly-V or otherwise) back on running in the same direction as when removed... Drive belt direction. Muse, I've never had to change a belt yet, but did remove the cover on my middle size bike to check it's condition.