Question about 1994 Mercedes-Benz C-Class
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Posted on Jan 02, 2017
Common causes for High-pitched noise from rear wheels are:
The wheel bearing: this is not usually dangerous in the short term, but I recommend contacting a mechanic and having it fixed. To test the wheel bearing, you lock front wheels, and jack up the car rear and spin the wheel (handbrake unlocked). If bearing is worn you hear a drone. When is the bearing, often car starts vibration above 40 mph.
Noise from bearing can be continuous, intermittent, only when steering, only when hot.
The brake pads: when brake pads are worn out they start making a squealing noise, in this case the noise is only when you brake or continuous. When you jack up the car the wheel may be a little stiff, but not necessarily.When brake pads are completely gone you also hear a scratching noise when braking. Inspect your brakes immediately.
Other suspension problems: Jack up the car as suggested above, check if the wheel has a slight play on the sides. Check all of the suspension components, suspension mounting points, and steering linkage for damage. Also, check the frame rail for wrinkles. It is very important that these components be in good condition, if you notice any problem here, go immediately to a mechanic.
Try doing the simple test above, reinstalling the wheel and working the tire back and forth. This is a common test for bad ball joints and wheel bearings.
Posted on Jul 17, 2008
Let's test the battery. Turn on yout headlights ant try to crank engine.
If the headlights dim, the battery is dead. If the headlightd go out you have a bag connection.
Now if the battery is dead we need to start it to ck the charging ststem.
If the indicarion is a bad connection then the battery cables beed removing clean and tight reinstsllation( special attento both ends of boyj cables.
To ck altrnator engine must be running and uou need a 10 dollar multimer from a parts stor and then get back to me K?
Posted on May 27, 2009
SOURCE: e320 car key doesn't work
Try both of your keys in the ignition, if neither turn, then it is likely the EIS Key Switch. The part cost for the switch is $480, vs. the cost of a key is $210. The labor to replace the switch is typically $260 from a Mercedes Benz dealer. I had my key and switch replaced almost 2 years ago. The key still looks like new, however the replacment key has already failed. It isn't the batteries, as the internal batteries power the remote locking only. The EIS switch energizes the chip in the key. My "new" key will not turn now, but my old "original" key still works. So, I know the switch hasn't failed again. Now to see if Mercedes will warranty the replacement key! Another tip with the key is if you hold it by the door lock and unlock it if you hold the unlock down, it will start to lower the windows to cool the car in the summer before you enter. If upon exiting, you hold the lock down, the windows will all close.
Posted on Nov 05, 2009
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