Mercedes W204 Belt Diagram (2024)

FAQs

Where is the serpentine belt routing diagram? ›

Where can I find a belt routing diagram for my engine? 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.

As you can see, one belt serves the A/C compressor, one belt serves the air or smog pump, one belts serves the alternator and two belts serve the power steering and water pump.

A Serpentine belt snakes around the crankshaft pulley, water pump, alternator, A/C and probably 1 or 2 jockey pulleys and used to be called a fan or accessory drive belt in the days of V belts.

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. Mercedes-Benz C-Class (W204)

Most vehicles nowadays usually have a belt routing sticker located somewhere in the engine compartment, making it even easier.

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.

The serpentine belt is one long, snaking belt that is designed to keep your alternator, power steering pump, air conditioning, and, in some cases, your water pump running smoothly and effectively. This belt might not keep your pants up, but it does transport power to vital automotive components!

The compressor belt connects your car's compressor to the engine. A broken belt can't power the compressor, causing your air conditioning to fail. If you suspect that your car's A/C compressor belt is failing, listen closely for odd screeching noises while driving.

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.

Which C-Class is most reliable? ›

2010 Mercedes-Benz C-Class

The 2010 model is highly regarded for its reliability, thanks to its well-built nature and fewer reports of issues.

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.

Are Serpentine Belts Directional? Because nearly all serpentine belts are symmetrical, a new belt's direction of rotation usually doesn't matter. What does matter, though, is that the new belt is routed correctly around the pulleys. It's also important that the grooved side of the belt faces toward the pulley grooves.

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.

What Does a Serpentine Belt Do? As we mentioned early, a serpentine belt delivers power to your alternator, power steering pump, and air conditioning compressor. In some cases, it also supplies power to your water pump. It's a long, winding rubber band of sorts that is attached to your crank pulley.

Explanation: If the engine's drive belt is worn and loose and you need to find the routing information for installing a new one, the most likely place to find this information would be C) On a diagram sticker under the hood of the vehicle.