How long does it take to replace belt tensioner on Mercedes Benz W203?
Replacing the belt tensioner on your Mercedes-Benz W203 is a relatively easy job. You should be able to do it in an hour and is a great starter project if you are just beginning to DIY or “Do It Yourself” on your car. Let the car cool so you don’t have to work around a hot engine.
How much does it cost to replace a tensioner on a Mercedes?
Local repair shops will charge between $280-$450. The DIY cost to change the Mercedes-Benz drive belt tensioner ranges between $50-$120, even if you have to buy the tools needed for this job and a new serpentine belt. 06 – 06 MERCEDES-BENZ C280 3.0L 2996CC 183CU.
Do you need to replace the drive belt on a Mercedes?
While it is not required to replace the drive belt, it makes sense to replace it simultaneously as the tensioner. It is ok to reuse the old belt if it does not show wear, cracking, degradation, or drying. Park, your Mercedes-Benz, set the parking brakes, and allow the engine to cool down.
Can a bad belt tensioner cause a car to break?
In more severe instances, a bad tensioner pulley can cause the drive belt to break. Since the belt tensioner keeps the proper spinning of the drive belts in the car’s engine, certain components or accessories may fail to operate if there’s a problem with the tensioner.
Do you need to replace the Mercedes belt tensioner?
In this guide, you will find step-by-step instructions on how to replace the Mercedes-Benz belt tensioner. While it is not required to replace the drive belt, it makes sense to replace it simultaneously as the tensioner. It is ok to reuse the old belt if it does not show wear, cracking, degradation, or drying.
How to replace alternator in Mercedes Benz W203?
Locate the tensioner and using the Torx driver turn the nut on the wheel counter-clockwise 45 degrees. You can now slip the belt off the tensioner. There is a picture below that shows you the routing of the belt that you can use when you reinstall the belt.
What should the torque be on a Mercedes tensioner?
Torque the tensioner bolts to the recommended manufacturer specifications. Typical torque for the tensioner bolts ranges between 25Nm to 35 Nm. Check with your dealer. Install the drive belt. Make sure it is routed on all the pulleys properly. If the belt does not reach, make sure it is not sitting on top of one of the pulleys.
How to change coolant in Mercedes Benz W203?
The cover is held on by five clips (red arrows) and will easily come off with hand pressure. Locate the tensioner and using the Torx driver turn it counter-clockwise 45 degrees. You can now slip the belt off the tensioner and install the new one.