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Rear Multi Link Suspension - C Class - W204 - Mercedes-Benz
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Rear Multi Link Suspension - C Class - W204 - Mercedes-Benz
Rear Multi Link Suspension
Time: 5 hours
Tab: $25 to $900
Talent: 3
Tools: 32mm 12 point socket, complete set of metric wrenches andsockets, 5mm Allen M12 12 point, 15mm socket, E14, E12 socket, large breaker bar or impact wrench
Applicable Models:
Mercedes-Benz C250 (2012-14)
Mercedes-Benz C300 (2008-14)
Mercedes-Benz C350 (2008-14)
Parts Required: Suspension control arm kit
Hot Tip: Check the bushing on the control arm
Performance Gain: Tighter suspension and longer life for your tires
Complementary Modification: Replace lower control arm bushings
If your Mercedes-Benz W204 is starting to wander all over the road, or the suspension is beginning to feel "sloppy," there is a good chance you have worn out suspension bushings. The W204 uses a 5 link suspension system that includes a series of control arms and a tie rod to keep the tires in proper geometry to the road. It is very unusual for one of the arms or "links" in the suspension to actually wear out, but the bushings on the ends of the arms do, and need to be replaced. While you may be able to find separate bushings for the arms it is wiser, and in the long run, cheaper to replace the whole arm that includes new bushings, while performing this job. The arms are sold individually or in a kit. If you can afford it, I would recommend installing all new links from the kit, and then get a good alignment done on the car. If one strut or bushing is gone the others are not far behind.
Remember when working on the suspension hardware that Mercedes considers all the hardware to be single use only so keep this in mind when ordering parts. You will need to get the alignment on the car rest after changing out the suspension components
Begin by safely raising and supporting your car off the ground. Please see our article on jacking up and supporting your Mercedes-Benz.
If the rear of your car is wondering all over the road it is time to check and replace components in the multilink suspension
Applies to: C350 (2007-14), C180 (2007-14), C200 (2007-14), C230 (2007-14), C250 (2007-14), C280 (2007-14), C300 (2007-14), C320 (2007-14)
Tumble Flap Actuator Repair - C Class - W204 - Mercedes-Benz Tumble Flap Actuator Repair Time: 1 hour Tab: $300 Talent: 1 Tools: T30 Torx, small flathead screwdriver Applicable Models: Mercedes-Benz C350 (2008-14) Mercedes-Benz GLK350 (2010-14) Parts Required: Actuator repair kit, silicone grease, blue Loctite Hot Tip: Lube the ball cups Performance Gain: Better engine performance Complementary Modification: New injector O-rings Along with the variable intake runners on the intake manifold on the Mercedes C350 the manifold also has tumble flaps. These tumble flaps on each side of the intake help swirl the air entering the combustion chamber helping with performance and economy. While the system works reasonably well, over time carbon will build up on the flaps and cause more stress on the plastic actuator arm than the system was designed to handle. This usually results in the failure of the plastic pivot lever where it meets the actuator arm. If you drive the car long ...
Battery Connection Notes and Replacement - C Class - W204 - Mercedes-Benz Battery Connection Notes and Replacement Time: 30 minutes Tab: $0 to $200 Talent: 1 Tools: 13mm socket and extension, 10mm wrench Applicable Models: Mercedes-Benz W204 (2008-15) Parts Required: Battery Hot Tip: Store any aftermarket radio codes you may need Performance Gain: Car starts Complementary Modification: Change cabin air filter The battery in the Mercedes W204 is located in the rear right hand side of the engine compartment by the A-pillar and window base and is covered by a plastic air box. When replacing your battery make sure to use a high quality unit; they tend to last longer than the cheaper ones. Replacing the battery is easy and can usually be done in less than 30 minutes. This is a great job to start your DIY journey. Working safely with your battery is an important aspect of fixing things yourself. Before disconnecting your battery, remove the key from the vehicle and store it in...
Front Stabilizer Bar Replacement - C Class - W204 - Mercedes-Benz Front Stabilizer Bar Replacement Time: 2 hours Tab: $170 Talent:2 Tools: E12 Torx, T40 Torx, 18mm, 13mm wrench Applicable Models: Mercedes-Benz C250 (2012-14) Mercedes-Benz C300 (2008-14) Mercedes-Benz C350 (2008-14) Parts Required: New stabilizer bar and hardware Hot Tip: Don't let the bar fall on you Performance Gain: Better handling If you are starting to hear a knock sound when you go around a corner there is a good chance your sway or stabilizer bar bushings are starting to go bad. Unfortunately, the rubber bushings on the stabilizer on the W204 are vulcanized to the bar and cannot be replaced separately. This means you will need to drop the bar and replace it with a new one. All of the mounting hardware is considered single use so make sure you order new hardware when ordering the bar. You will need to jack up the car and remove the front wheels along with the under body trays to perform...
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