20 Most Recent 1989 Mercedes-Benz 190 - Page 6 Questions & Answers

check fuel injectors for dirty , fuel filter

Have you checked your OVP relay? They can be troublesome for sure. It's located behind the battery under a plastic cover. It'll be the tall relay with the aluminum housing, has a fuse on top, check the fuse first. If the fuse is good then pull the relay and give it a shake, it's not supposed to rattle, good sign it's bad if it does. Sometimes moisture can get back there and cause corrosion to the relay pins and connector. If it pulls out hard then I'd suspect to see some corrosion, most all mercedes electrical connectors are silver plated and turn black when oxidized. If so clean it up by lightly scrubbing with a scotch pad. I've had problems with them before and had luck repairing them myself by removing aluminum shell and reheating all the sauter on pcb carefully. If the printed circuit board looks burned in any way there's a possibility that the electronic components may be toast. May be easier to buy a new ovp relay but they can be pricey. The OVP relay is one of a few possible culprits to your issue, best case scenario imo. Worse case your cylinder compression is too low. Could be a cold start valve issue too. Hope this helps.

Here's a link on changing your tensioner and belt. Mercedes Benz Belt Tensioner Replacement

engine coolant temp sensor for engine control management out of range easy replacement its fitted in the cylinder head i think ? its a common fault hope this helps.

Here's a couple of links that may help you: entering the CODE number Mercedes Audio Radio Player Tuner How to correctly enter Mercedes radio code

Try here for info on that issue. MercedesSource com

Hi there my name is Brandon I am a mechanical n electronic engineering technician I am the man reg mechanics call when they cant fix something OK to start its not the rely and its not called in... switch!! It is called wiper control switch and its going out or its in a bin

Look on YouTube

Hi,if its that you have taken it apart and forgot how to put it back together,if so,take the opposit door card off and copy it. have a good day.

Hi,if you are talking about the front calipers,I serjest you buy some brake cleaning fluid,first open the bonnet and undoe the cape from the brake resiver and put a absobent rage around the top so you dont get brake fluid over eneything, take road wheele off,then spray the pistons that push the brake pads on to the brake disk (rotor)then get a screwdriver and pu between the pads and the brake disc and gently lever the brake pads away from the brake disc untill the piston is neerly in the brake caliper,then go inside the car and apply the brake then check level of fluid in resiver if ok go back to wheele caliper and repeat about free times (on bothe sides. that should cleer the dirt thats cousing the pistons to stick.(make shore that the rubbers on the calipers are not damidged if so you should replace them)hope this was some help.

Sounds to me like your strut has jammed .. hold the bonnet up , remove the strut and try then

You will find a guide to your fuses in the side box next to the steering wheel. You have two fuse boxes, one in your boot on the right side behind your right tail lights, and one in your engine on the right front part when you open your hood facing the car. Change the fuse according to the guide.