20 Most Recent 1987 Mercedes-Benz Mercedes Benz 400 Class Questions & Answers

could be a plug,or wires.Check cap,and rotor button you.

may take to radio installer familiar with mercedes ,as alot of vehical info , data for diagnosis goes threw factory installed radio ,

I removed the module from under the dash and resoldered all of the connection ( that took a few days ) and re installed it. It has worked ever since.

They should be one-way valves and they need to be installed so that air can only move through them in the direction of the vacuum source (intake manifold). These parts ensure that a state of vacuum will remain in the system even when the source of vacuum is removed (the engine is turned off) so that vacuum accessories can operate a couple of times even with the engine turned off.

the best thing you can do for this car is drain the tank and start again. the injection system this car uses is a very very good but tempermantal one and poor fuel quality or contamination(like water) will feel like the world is coming apart. change the fuel filter also which is in the rear near the right wheel. it will be a pump with the filter right next to it. these are really great cars. once the tank is drained and good fuel poured in, replace the spark plugs with bosch w8dc with a plug gap of .032".

that year was controlled by a vacuum hose.. look and see if any little hoses are disconnected or broken .. (hole)

pull it to one side or the other and tilt it out then pull other way. Then lift out. One groove is deeper to allow it to be wedged in on some models. If not keep looking for 1-2 nuts to remove.

Remove under dash panels,carpet & move relays aside.It's tight in there. Watch spacers on piston bolt to brake pedal.

hi,light switch is located at the left side lower area of cluster,if you remove your key then a warning buzzer on,you left one light on,if your battery is flat,maybe some electrical consumer is draining your battery,if you see the sign of battery in your cluster even you remove the key,your alt.is defect,ty

there are only 3 things that can make that fan not work. a bad fan motor which u can jump out to test.no power to fan which you can test with a test light.if u have no power its a blown fuse or a bad relay.Or the temp senser is no good which u can also jump out

Of course the first thought would be the fuse so you might check it one more time. After that the one thing both side have in coman is the driver side as you can roll the pass side up and down from there. So you may have a broken wire or curcit on that side, maybe the power wire is broken in the rubber boot that conects the door to the car on that side. A simple test light would help track it down.

Check the underside of your hood for a belt diagram. If it's not there, call your dealer with your VIN number to get the correct diagram.