How long does it take to replace tensioner on Mercedes Benz?
Replacing the drive belt tensioner on the Mercedes-Benz engine is relatively easy. It requires a few basic tools and approximately 30 minutes. This guide applies to the majority of Mercedes-Benz cars.
How do you Un tension a Mercedes Benz belt?
At this point you can release the tension on the belt and slip it off of the alternator pulley. Place a 15mm socket over the bolt on the tensioner (red arrow) and turn the socket clockwise. This will un-tension the belt. If you are replacing the belt you will need to follow the steps below.
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.
What happens if you don’t replace your tensioner?
Over time the tensioner pulley can start to crack. If not replaced on time, it can fail while the engine is running. The drive belt will come off the various pulleys, possibly causing damage. The tensioner pulley bearing may also fail. When this happens, you would normally hear noise coming from the front of the engine.
At this point you can release the tension on the belt and slip it off of the alternator pulley. Place a 15mm socket over the bolt on the tensioner (red arrow) and turn the socket clockwise. This will un-tension the belt. If you are replacing the belt you will need to follow the steps below.
Can you replace the drive belt on a Mercedes Benz W124?
I recommend you buy two belts and always keep an extra one in the car. You don’t want to be stranded on the side of the road for the lack of a spare drive belt. Replacing the drive belt on the W124 is a very doable DIY; what it is not is as simple as doing it on and old Chevy.
How to remove clutch from Mercedes W124 Pelican?
The bolt that holds the clutch and fan on is quite long so be prepared to turn it for a while (red arrow). Wiggle the fan and clutch off the front of the pulley and remove it from the vehicle (red arrow). You can slip the belt off the front of the engine. This diagram illustrates the route the belt takes around the crank and accessories.
How do you remove a clutch from a Mercedes Benz?
To remove the fan and clutch you will need Mercedes-Benz tool # 104 589 00 01 00 or you can make one out of 6mm rod. The lower part of the tool will sit in a retaining groove, while the end of the tool sits in a hole in the pulley to hold everything while tightening or loosening the bolt (red arrow).
Why does my Mercedes Benz make a clicking noise?
It requires electrical power to crank the engine. The car makes a clicking noise but won’t start. Hint: Starter Problem or Low Battery This may seem obvious, but an old battery is the root of many headaches and can cause all sorts of malfunctions on Mercedes-Benz cars.
What’s the best way to change a tensioner?
Use a 17mm socket to move the tensioner up (service) position. Insert a metal pin in the tensioner hole to keep the tensioner up. A 5mm Allen wrench or bolt can be used as a pin. The pin needs to be strong enough to withhold shear force.
What do I need to troubleshoot my Mercedes Benz?
Troubleshooting fuel related problems is not very difficult and you can check the fuel pressure yourself. Checking the fuel pressure is very simple. For this test, you will need a fuel pressure gauge. What you need is a fuel pressure gauge with Schrader valve adapter.
Where is the tensioner on a Mercedes W203?
Unplug the harness, pull the plastic cover off the cable connector and use a 15mm socket to remove the cable. Now you can slide the alternator out of the engine. You will need to move the auxiliary coolant hose out of the way. Located on the engine block between the upper mounts for the alternator is the tensioner.
Replacing the drive belt tensioner on the Mercedes-Benz engine is relatively easy. It requires a few basic tools and approximately 30 minutes. This guide applies to the majority of Mercedes-Benz cars.
What happens if you change the idler pulley on a Mercedes Benz?
Changing the idler pulley on a Mercedes-Benz is a relatively easy job for most DIYers and required less than two hours. A bad idler pulley can cause the serpentine belt to come off. Once the belt comes off, you will experience multiple problems if you continue to operate the vehicle. Power steering is difficult to turn.
Where is the temperature sensor on a Mercedes Benz?
You can now get access to the temperature sensor behind the idler pulley. Squeeze the electrical connector and remove it from the sensor. Use a flathead screw driver and slide the clip that holds the sensor in place up towards the air pump, you will not be able to pull the clip all the way straight up and out with out removing the air pump.