Question about 2007 Mercedes-Benz C230 Sedan

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It is a 2007 c230 it has a p0025 code what can i do??

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  • Jeff Turcotte
    Jeff Turcotte Nov 09, 2010

    this is a problem with the variable cam timing, and you will need to find a mechanic that knows those engines. Most mechanics have never worked on one of those. :-(



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We scanned it and it shows code P0025. How do we fix it?

this may help. A code P0025 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0025 DTC specifically refers to the camshaft (cam) timing In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The "B" camshaft is either the exhaust, right, or rear camshaft. Bank 2 is the side of the engine that does not contain cylinder #1. This code is nearly identical to P0022.
Potential Symptoms Most likely a P0025 DTC will result in one of the following:
  • hard starting
  • poor idle and/or
  • stalling
There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes A P0025 DTC trouble code may be caused by one or more of the following:
  • Incorrect camshaft timing
  • Wiring problems (harness/wiring) in intake timing control valve control solenoid system
  • Continuous oil flow to VCT piston chamber
  • Failed timing valve control solenoid (stuck open)
Possible Solutions The main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCT solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.

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1 Answer


P0025 Generic Exhaust Camshaft Position Timing - Over-Retarded (Bank 2)

This could possibly be a solenoid problem(part of cam timing). Apparantly these sensors get heat soaked and stop communicating with the PCM . The car shuts down, cools off and then will go again.

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disconnect the battery for 30 sec. then reconnect. this clears all trouble codes and will turn that light off.

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The display on the radio and the radio wont come on its mercedes benz C230-1998. had to charge the battery

you will probably have to enter a code for your radio to work again, look in your owner's manual and if you do not have one then you will have to call a dealer and get the code or try searching online, sometimes you can get help there

Nov 13, 2009 | 2007 Mercedes-Benz C230 Sedan

1 Answer

Why is my Engine light on at 28,000 miles on C230 Mercedes 2007

Could be a number of causes.Some simple some not. Go to autozone and ask them to read your codes for you. They have a code reader they can plug into your car that will tell you what made the light come on.

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1 Answer

2007 Merceds Benz C230 - Service A

is it the very first service. if so that is normally free. joe

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