20 Most Recent 1990 Mercedes-Benz E-Class Questions & Answers

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

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

Check the starter motor and its solenoid switch

1990... | Answered on May 27, 2014

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

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

The marks indicate shift points.

1990... | Answered on Apr 30, 2014

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

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

1990... | Answered on Jan 14, 2014

try benzworld.org or peachparts forum

1990... | Answered on Nov 29, 2013

the main switch is bad replace main switch

1990... | Answered on Nov 09, 2013

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

1990... | Answered on Nov 08, 2013

Reading from the O2 Sensor

1990... | Answered on Apr 10, 2013

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

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