I have clk 99 230 kompressor 4 cylinder a problem with my gearbox gearbox does not transfer speed only at the first speed There are voice "Ziiiinnnnnnnnn" around the gearbox and the RPM keep accelerating, the mechanical said you should change the gearbox but without checking the car or computer check

SOURCE: Misfire

One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. Peice is about ten bucks and is an easy install. Just search on youtube for a how-to video. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point.

If that's not a fix, start pulling plugs. Check to see if they're correctly gapped and if they have any damage/corrosion. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Most people have the best luck with NGK copper.

Check to make sure that your plug wires haven't been crossed. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema.

SOURCE: Transmission fluid change interval for Mercedes C230 Kompressor

hi, mercedes are good for 200,000 before you change transmission oil, hope this helps my E300 has done 350,000 and still changes fine as the oil is not a lubricant as such it lasts longer and does not lose it's viscosity, hope this helps you, thanks for useing fixya

SOURCE: Toyota Corolla 98 Cylinder #1 and #4 misfire

I have power at the coils , have good compression , have you ever seen a crank pickup cause this problem?

SOURCE: Check Engine light code 1506

this code indicates under-speed error has ocurred.
sets when PCM detects idle speed is 100 RPM lowerthan expected for 14 sec while break pedal depressedand steering wheel is straight ahead.

possible causes: IAC valve failure,intake leak,throttle body failure,opens or shorts in wiring between IAC and PCM.

Colin Stickland

• 22516 Answers
• Posted on Nov 20, 2009

SOURCE: car stalls pressing accelerator do not increase

is it fly by wire or does it have a throttle cable ,if fly by wire change the sensors on the pedal