Top 20 1992 Mercedes-Benz 190 Questions & Answers

Likely a failing crankshaft position sensor... Part #: 002-153-95-28-MBZ https://autoplicity.com/9241615-fae-002-153-95-28-camshaft-position-sensor?gclid=CjwKCAiAmb7RBRATEiwA7kS8VAI-hgXJUgVcHpRbhQQXGlj_d81y94fmbset2D_Lkg0sU33E6J6jZBoCBkwQAvD_BwE http://www.pelicanparts.com/techarticles/Mercedes-W129/37-ENGINE-Crankshaft_Position_Sensor_Removal/37-ENGINE-Crankshaft_Position_Sensor_Removal.htm

run the fault codes to check for faulty sensors. Have the cat converter checked as it may be cracked and blocking the exhaust at speed.

Hi,If the car run out of oil it would have coused alot of damidge to alot of the entunal parts,especialy the crank and the camshaft,this is only too parts out of meney,with out seeing the car I would say that the crank has worped which would couse this. hope you get it sorted and that the damidge is minimon.

Sensor malfunction . Change it

Sensor malfunction , change it

Battery cables? If so the short black cable with one end bolted to the inner fender near the windshiel goes to the negative or ground battery post...marked on the battery as NEG or/and - .The other battery post clamp is for the positive post on the battery marked + and/or POS.There should be no other cables unless someone has installed a radio amplifier or other power operated items. If so, these will go to the POS + post.

check all gaskets....sounds like a failed gasket

try getting a printout from autozone or a foreign car dealer who will give you step by step..

hi oil in your coolant tank usually means that your head gasket is blown.

do you want to adjust the idle up or down? If your car has too high of an idle, you probably have a vacuum leak. buy a can of starting fluid. Start the car and lightly start spraying starter fluid all over the intake. You will hear the engine change RPMs. When it does, that is where you have a leak. If you want to idle your car up, you will need to adjust your throttle plate. Where your throttle hand moves when you rev your engine, it has a little screw that you can adjust to make the throttle arm stop sooner, allowing more airflow into the engine.

Ok So the air injection is designed to blow cooled fresh air into the catalytic converter to aid in its transference of gases. You may need to get a tube welded on to the "cat" to attatch to the air injection one way valve. An experienced exhaust shop will know right away what to do and shouldn't take but an hour and maybe $50. Great engine on those cars. Let me know if you need anything else.

If you put a stronger fuse in, it will burn the spot were the short is, may cause a fire !!
Need to find out what is making it blow the fuse ?

Is this a 2.3 or 2.6. I may have a manual for you.

Hi there, the wiring sequence that I have is for the UK, I dont know where you are but I hope this helps
pin 1 Yellow L/H direction Indicator (turn Lamp)
pin 2 Blue Rear Fog Lamps
pin 3 White Earth Return
pin 4 Green R/H direction indicator (turn Lamp)
pin 5 Brown R/H Tail Lamp & No. Plate Lamp
pin 6 Red Stop Lamps
pin 7 Black L/H Tail Lamp & No. Plate lamp

you will have to trace the wires from the wiring loom and light clusters off the car to splice in the towbar wires which is quite easy, the chassis should have location points for the bracket, just make sure that the tow hitch is central and not obscuring the number/license plate..
Good Luck.

Verify fuse for horn is good.
Check for voltage at horn when button is activated
If voltage is present insure horn is mounted firmly. If there is rust / dirt remove horn and clean both the frame and the horn and remount as a bad ground will prevent it from working also.
If voltage is good at fuse and not present at horn when button activated it could be bad switch or wiring

If you have inspected all of the fuses in the main fusebox, and they are OK, your problem is going to lie inside the instrument cluster itself.

is the engine working well?
Check engine oil and let sombody test sensors. If engine works good.

Your best bet is to shop around local shops like Midas, Tires plus, etc... they have specials and are considerable cheaper than dealer. If you bought parts yourself and did it yourself would be least expensive, but if you've never done wheel cylinder replacement before, this is NOT the car to learn on.