O2 sensors are located in the exhaust system.
The oxygen sensor for my 1989 190E 2.6 is located on top of the exhaust just underneath the passenger side of the car. The wiring from the 02 sensor runs up underneath the passenger side floorboard carpet.
Under the hood on the drivers side near the windshield
It is under the car, and it is covered by a plastic shield for protection
If you have a 1989 or a 1990 2.6 Liter automantic transmission Mercedes Benz,then there is no PCV. It has already passed emissions.
A fuse box diagram for a 1989 Mercedes Benz 420sel is located in the service manual. It is particularly helpful when troubleshooting electrical problems and install new equipment.
Left exhaust manifold.
The oil pump is located at the bottom of the engine, inside of the oil pan.
I was a factory trained Mercedes mechanic. The more information, the better the diagnosis. What indicator are you asking about and are you sure it is controlled by a relay? Max
Oxygen sensors on a 1989 Toyota SR5 and located near the catalytic converter. The sensors read the emissions from the vehicle so the ECU knows ho much fuel to run in the engine.
Toyota V6 1989 Oxygen senson is located on the driver side in front of the catalytic convertor. It has four wires and held on by 2 bolts.
The oxygen sensor on a 1989 Chevy Celebrity is located in the rear exhaust manifold on top about the center.
The oxygen sensor is in the middle of the exhaust manifold near the firewall.