Code P0016 but no cel light

[Naffdave]

Have code P0016 on my 2005 C230 2.5 coupe but no cel light. I thought that the cel light comes on when this code problem appears. Mechanic has said its the variable cam timing oil feed pulley i cant find any reference to what he says i thought its done with magnets.
Anyone any ideas on this.
Dave

 

[clk320x]

Have code P0016 on my 2005 C230 2.5 coupe but no cel light. I thought that the cel light comes on when this code problem appears. Mechanic has said its the variable cam timing oil feed pulley i cant find any reference to what he says i thought its done with magnets.
Anyone any ideas on this.
Dave

Didn’t you have a Clk? What happened to it

 

[Naffdave]

Didn’t you have a Clk? What happened to it

Yes i did have a CLK 270 which i loved except it just would not stop blowing injector seals and with the other problems i decideed it had to go.
So i bought a 2005 C230 2.5 Coupe which is playing up im not very lucky with buying cars.

 

[clk320x]

Yes i did have a CLK 270 which i loved except it just would not stop blowing injector seals and with the other problems i decideed it had to go.
So i bought a 2005 C230 2.5 Coupe which is playing up im not very lucky with buying cars.

You should have bought off the forum, at least you can trust the car will be as described with no hidden gremlins.

Hope you get it sorted mate.

 

[toolman1954]

Hi,
Seems P0016 is a code for the Camshaft Position Sensor being out of sync with the Crankshaft Position Sensor.
Ultimately seems you may need 2 new sensors and to clean the OCV (oil control valve) or replace that if it cannot be cleaned.
So many mechanics seem to like to tell you the codes and send you on your way, as happened to my o/h's A169, just an observation!

Steve.



P0016 code definition
Camshaft Position A - Camshaft Position Correlation (Bank 1)

What the P0016 code means
P0016 is the OBD-II generic code indicating that the camshaft position sensor for bank 1 does not correlate to the signal from the crankshaft position sensor.

What causes the P0016 code?

• The camshaft timing is out of position due to the timing chain jumped teeth.
  
  
• The camshaft phaser is out of position due to problems with phaser.
  
  
• The oil has flow to the phaser is impeded from having an incorrect oil viscosity or partly clogged passages.
  
  
• The Oil Control Valve (OCV) has a restriction in the OCV filter.
  

What are the symptoms of the P0016 code?

• The Check Engine Light comes on.
• The engine may have a reduction in power or start hard.
• The engine may run erratically, stall, hesitate, or run rough.
• The engine's fuel mileage will decrease.

Note: The erratic drive complaints will vary depending on the failure.

How does a mechanic diagnose the P0016 code?

• Visually checks for problems with the connections or wiring of the OCV, camshaft and crankshaft sensors
  
  
• Verifies that the engine oil is full and that the oil is clean with the correct viscosity
  
  
• Scans and documents the engine codes and views the freeze frame data to see when the code was set
  
  
• Resets the Check Engine Light and road tests again to see if code returns
  
  
• Commands the OCV on and off to see if the camshaft sensor is indicating timing changes for the bank 1 camshaft
  
  
• Performs the manufacturer’s tests for the P0016 code to determine the cause of the code
  

Note: The manufacturer's recommended pinpoint test is used to narrow down the problem. Following the recommended tests will help with diagnosis without replacing the wrong parts.

Common mistakes when diagnosing the P0016 code

• Not verifying the failure and codes before attempting any repairs
  
  
• Not doing a visual check for possible problems with the wiring or connections to the components
  
  
• Not doing all pinpoint test steps to help prevent misdiagnosis of good components
  
  
• Not replacing parts directed by the pinpoint test or visually checking them to make sure they are bad
  

How serious is the P0016 code?

• The engine can have stalling or hesitations along with hard starting.
  
  
• The timing chain may have problems with tensioners or guides and can lead to major engine damage if the valves hit the pistons.
  
  
• Driving the vehicle for a prolonged time with the camshafts out of time may cause additional internal engine problems, depending on the failed part.
  

What repairs can fix the P0016 code?

• Resetting the fault codes and performing a road test
• Replacing the camshaft sensor on bank 1
• Repairing the wiring or connection to the camshaft OCV or camshaft sensor
• Replacing the camshaft OCV for bank 1 exhaust camshaft
• Replacing the timing chain and guides

Additional comments for consideration regarding the P0016 code

• The code P0016 can be due to the camshaft sensor for bank 1 having an internal intermittent problem due to vibration or heat. These problems may or may not be able to be verified. If repeated attempts to find the failure end up in not verifying the code, then suspect a failing camshaft sensor.

 

[Naffdave]

Hi,
Seems P0016 is a code for the Camshaft Position Sensor being out of sync with the Crankshaft Position Sensor.
Ultimately seems you may need 2 new sensors and to clean the OCV (oil control valve) or replace that if it cannot be cleaned.
So many mechanics seem to like to tell you the codes and send you on your way, as happened to my o/h's A169, just an observation!

Steve.



P0016 code definition
Camshaft Position A - Camshaft Position Correlation (Bank 1)

What the P0016 code means
P0016 is the OBD-II generic code indicating that the camshaft position sensor for bank 1 does not correlate to the signal from the crankshaft position sensor.

What causes the P0016 code?

• The camshaft timing is out of position due to the timing chain jumped teeth.
  
  
• The camshaft phaser is out of position due to problems with phaser.
  
  
• The oil has flow to the phaser is impeded from having an incorrect oil viscosity or partly clogged passages.
  
  
• The Oil Control Valve (OCV) has a restriction in the OCV filter.

What are the symptoms of the P0016 code?

• The Check Engine Light comes on.
• The engine may have a reduction in power or start hard.
• The engine may run erratically, stall, hesitate, or run rough.
• The engine's fuel mileage will decrease.

Note: The erratic drive complaints will vary depending on the failure.

How does a mechanic diagnose the P0016 code?

• Visually checks for problems with the connections or wiring of the OCV, camshaft and crankshaft sensors
  
  
• Verifies that the engine oil is full and that the oil is clean with the correct viscosity
  
  
• Scans and documents the engine codes and views the freeze frame data to see when the code was set
  
  
• Resets the Check Engine Light and road tests again to see if code returns
  
  
• Commands the OCV on and off to see if the camshaft sensor is indicating timing changes for the bank 1 camshaft
  
  
• Performs the manufacturer’s tests for the P0016 code to determine the cause of the code

Note: The manufacturer's recommended pinpoint test is used to narrow down the problem. Following the recommended tests will help with diagnosis without replacing the wrong parts.

Common mistakes when diagnosing the P0016 code

• Not verifying the failure and codes before attempting any repairs
  
  
• Not doing a visual check for possible problems with the wiring or connections to the components
  
  
• Not doing all pinpoint test steps to help prevent misdiagnosis of good components
  
  
• Not replacing parts directed by the pinpoint test or visually checking them to make sure they are bad

How serious is the P0016 code?

• The engine can have stalling or hesitations along with hard starting.
  
  
• The timing chain may have problems with tensioners or guides and can lead to major engine damage if the valves hit the pistons.
  
  
• Driving the vehicle for a prolonged time with the camshafts out of time may cause additional internal engine problems, depending on the failed part.

What repairs can fix the P0016 code?

• Resetting the fault codes and performing a road test
• Replacing the camshaft sensor on bank 1
• Repairing the wiring or connection to the camshaft OCV or camshaft sensor
• Replacing the camshaft OCV for bank 1 exhaust camshaft
• Replacing the timing chain and guides

Additional comments for consideration regarding the P0016 code

• The code P0016 can be due to the camshaft sensor for bank 1 having an internal intermittent problem due to vibration or heat. These problems may or may not be able to be verified. If repeated attempts to find the failure end up in not verifying the code, then suspect a failing camshaft sensor.

Thanks for the very informative message.

 

[Codger49]

Guess its a M272 engine?

If so, then I would have expected the cel to be illuminated. Has someone previously removed the bulb? This has been heard of before.

Toolman has given you a pretty good write up of the P0016 code, it may well be the cam sensor is u/s, as early ones were replaced with an updated version in around 2008. (My 2006 CLK280 has had 3 of the 4 camshaft sensors replaced now.) New sensors are only around £20-25 each and take about 15 mins to fit.

The worrying aspect is that P0016 and P0017 together at the same time are one of the best indicators of the dreaded M272 balance shaft gear failure issue - see 'The complete M272 engine thread' on this forum.

 

[Naffdave]

Thanks for the info ive just reread my car with scanner got the P0016 code and P0301 code but DONT have P0016 and P0017 together and no cel light ?