1990 Mercedes-Benz E-Class - Answered Questions & Fixed issues

Sounds like a warped head take to a mechanic have a compression test done. DO NOT USE ANY GASKET SEALER

1990... | Answered on Oct 01, 2016 | 62 views

Check the starter motor and its solenoid switch

1990... | Answered on May 27, 2014 | 129 views

First start with the basics check fuses relating to fuel and or injectors make sure there is voltage next look into your crank sensor usually if it fails the computer doesn't know you are trying to start the vehicle because the signal the sensor is supposed to give out to the computer is not there due to a faulty sensor once the computer senses the signal from the crank sensor then the computer will send a command to the injectors to start pulsating gas let me know how this turns out for you.

1990... | Answered on Feb 26, 2015 | 88 views

Low RPM, high load is when the engine demands the best spark. More than likely you have a bad plug or plug wire causing this issue. You didn't say how many miles are on the car. It could also be due to a broken piston ring, but I wouldn't say that without knowing what kind of mileage was on the car.

1990... | Answered on May 20, 2014 | 208 views

Check the Fuel Pump Relay. behind the battery next to the OVP Over Voltage Protection Relay. They do fail. Occasionally the engine will not start when hot. This becomes more frequent until you are left stranded. If you are comfortable with jumping two terminals you can jump terminals 7 & 8 test the relay. if the car starts your Fuel pump relay is bad.

1990... | Answered on Apr 30, 2014 | 52 views

The marks indicate shift points.

1990... | Answered on Apr 30, 2014 | 34 views

Check the seat belt wiring under your front seats, seat belt pre tensioners are related to the srs system and sometimes with seat adjustment these can become loose. The wires are mostly yellow in colour and if you check all connections are tight this may solve your problem

1990... | Answered on Apr 30, 2014 | 1,009 views

Use the yellow bottle of HEET dry gas to rule out water in fuel

1990... | Answered on Jan 14, 2014 | 82 views

try benzworld.org or peachparts forum

1990... | Answered on Nov 29, 2013 | 115 views

the main switch is bad replace main switch

1990... | Answered on Nov 09, 2013 | 24 views

defintly a valve,regulator or gas line leak,or injector leaking rail pressure

1990... | Answered on Nov 08, 2013 | 124 views

Reading from the O2 Sensor

1990... | Answered on Apr 10, 2013 | 54 views

Many possible causes. Spark plugs, HT wires, Distributor cap or rotor, Stale fuel, Ignition coil or a fuel clog somewhere.

1990... | Answered on Apr 08, 2013 | 478 views

trial and error. Look at it like a puzzle. Takes time to get that sweet spot.
I wish everyone here was in houston.

1990... | Answered on Dec 22, 2012 | 36 views

We have no repair manuals here at fixya. You can pay to access them here

1990... | Answered on Oct 08, 2012 | 364 views

There are fuelpump relays for electric fuelpumps. You can have a bad fuelpump with either a mechanical or electric pump. You can have a clogged filter.

You can try Autozone.com and register your vehicle for free. Then you can get wiring diagrams and fusebox diagrams for the electric relays. Then you can find out which system you have.

It certainly sounds like you are on the right track since you discovered its a fuel problem.

1990... | Answered on Sep 01, 2012 | 121 views

The blower motor fuse is located On the left front shock tower ON USA versions. It is inside a small plastic housing

1990... | Answered on Jun 26, 2012 | 344 views

If you are looking for the evap temperature sensor it is located in the evaporator housing

1990... | Answered on Mar 09, 2012 | 75 views

Thats a classic old motor ,wonder it hasnt rotted away by now anyway your relays if i remember rightly are in a power distributioin box under the bonnet at the back left hand side on a LHD vehicle

1990... | Answered on Dec 29, 2011 | 122 views

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