Q: Are there 2 camshaft positioning sensors to replace on this car

asked by on September 13, 2016

My check engine light is on and car is running rough error code is 200 1208 cam shaft balancing issue.should I replace the camshaft positioning sensors or is this a deeper issue with balancer. I have read about a class action law suite against mercedes

My car has 102000 miles.
My car has an automatic transmission.

You actually have four camshaft sensors. Two on each head and one for each camshaft. There is likely a deeper issue that should be diagnosed.

1208 is "Constant adjustment of intake camshaft or right cylinder bank in direction retarded." 200 is "(Throttle valve actuator), Position throttle valve."

There is nothing in these codes that suggest there is a balance shaft issue. These codes together could be two separate issues or more than one issue. Only time diagnosing your car will tell. I wouldn’t recommend replacing camshaft sensors without a thorough diagnosis.

The 1200 camshaft code is a cam timing problem. It could be a mechanical problem with the chain or a problem with the system that adjusts the variable valve timing. Variable valve timing system consist of solenoids that advance and retard the camshafts. All manufacturers tend to have issues with these solenoids.

The 200 code has to do with your throttle plate. This could be a TPS (throttle position sensor), throttle valve motor, or a physical problem with the throttle plate itself.

Both of these codes will require a scanner and a technician with experience, like one from YourMechanic, to properly diagnose the trouble codes in your car.

Good luck!

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

My heater blower doesn't work how do I test if it is the resistor or blower?

Hello. If the fan is not turning on then the blow motor needs to be checked. I usually check for power at the blower. If there is power there then I replace the blower. If not then I check the...

Car not running

It sounds like you have at least two issues, the check engine light has come on accompanied by loss of power and you have an antifreeze leak. The source of antifreeze leaks can be pinpointed by simple pressure testing of...

Could a problem with the knock sensor keep my car from starting?

Hi there. A problem with the knock sensor or knock sensor circuit can definitely make starting a vehicle more difficult. A knock sensor is used by engineers to help the engine's computer sense possible internal engine failure before it becomes...

Hello I have a 2001 Montero sport 3.0 that died and tries to start but won't acts like it's way out of time. Would a bad CPS cause this problem?

Hi there. A crankshaft position sensor will cause the engine to not start if the sensor has failed. The crankshaft position sensor is designed to tell the ECM (computer) when the cylinder number one is at top dead center and...

Mercedes 2006 R350 not starting.the vehicle was not started for 20 days.road side assistance visited and they said battery is good

Hello, thank you for writing in. In addition to checking the battery, you will want to make sure the battery cables are clean, dry, and tight. When the cables or ground connections are loose or corroded, they are likely going...

Check Engine Light is on and engine is quaking and stalling - 2006 Mercedes Benz C55 AMG

Hello. If the Check Engine Light has come on, then that means the computer has detected some sort of issue. I would rescan the computer to see if the same code has returned, even after cleaning the sensor. If cleaning...

I took my BMW z3 in to the shop to get an oil change. When I picked it up the engine light was on. The car is running great though

The oil change process is generally a very simple one, but it does involve moving panels and some shops do a brief inspection on the vehicle as well. It is not likely that the Check Engine Light coming on is...

Check fuel cap warning flashes, car shuts off

Hello there, in most cases the check fuel cap warning and the vehicle shutting off are not related. The check fuel cap light is shown due to the a leak detected in the EVAP system. When leaks like this occur,...

Battery light is still on after getting a new battery and alternator

The Honda Element has a computer-controlled charging system to help improve fuel economy. In the engine compartment fusebox there is an ELD unit that monitors electrical loads of the vehicle consumers and will communicate with the engine computer to turn...

Related articles

P2509 OBD-II Trouble Code: ECM/PCM Power Input Signal Intermittent
P2509 P2509 code definition The P2509 diagnostic trouble code is an indication that the ECM/PCM power input signal is having an intermittent problem. Related Trouble Codes: P2505 OBD-II Trouble Code: ECM/PCM Power Input Signal P2506 OBD-II Trouble Code: ECM/PCM...
5 Warning Lights You Should Never Ignore
Car warning lights tell you something in your car needs attention. If you see the Check Engine Light or other warnings, get it inspected right away.
P0961 OBD-II Trouble Code: Pressure Control Solenoid A Control Circuit Range/Performance
P0961 means the voltage levels are outside of preset automaker variance allowances due to faulty wiring, solenoid, or low/dirty transmission fluid.