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.

Most Mercedes-Benz's have 1 or 2 drive belts and in some instances, it may be called a serpentine belt.

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.

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.

As an example, “8PK2515” is the PK number found on an OEM serpentine belt. The first digit indicates an eight-rib belt, followed by “P” to identify metric belt sizing, and a “K” showing that this belt conforms to the SAE standard for rib sizing (3.56 millimeters wide for automotive-type serpentine belts).

A timing belt has horizontal “teeth” designed to fit the cogwheels of the crankshaft and camshaft. A serpentine belt has V-shaped grooves that run vertically along the belt.

Replacing the serpentine belt is as simple as threading it into position, cranking the tensioner and slipping the belt over the tensioner pulley, or nearest pulley up top. Belt tensioners are mostly spring tension. Once installed, the spring retains pressure to the belt.

Since the serpentine belt helps provide power to cool the engine, a faulty belt can cause the car engine to overheat as the water pump will not turn. As soon as the engine begins to overheat, have it inspected by a mechanic as it can cause a breakdown and cause engine damage if left overheated.

The two least powerful petrol-powered il4s' (1.6L/156PS and 1.8L/184PS) are reputed to be the most durable, reliable powerplants. They enjoy the reputation of being very close to "indestructible".

Is the Mercedes W204 a good car? ›

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.

When it comes to picking the best Mercedes-Benz C-Class variant, it would hands down have to be the C 220d. This is the entry-level diesel offering, and is offered with a 2.0-litre diesel engine. While the higher diesel variant also gets a 2.0-litre engine, it's tuned to make a lot more power and torque.

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.

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.

There are two ways to align pulleys: Traditional and laser. Traditional alignment methods are quick but often inaccurate. With these methods, mechanical tools such as straightedges, tape measures, wire, string, feeler gauges, spirit levels and calibrated cones are used.