Code: P001600
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,370
Likes: 702
2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
What model and engine? Is the check engine light also on?
P0016 is camshaft position sensor on almost all W204 MB engines. But probable cause and remedy vary. It can also be a spurious code. Delete it and see if it returns.
P0016 is camshaft position sensor on almost all W204 MB engines. But probable cause and remedy vary. It can also be a spurious code. Delete it and see if it returns.
Thread Starter
Newbie
Joined: Jan 2026
Posts: 3
Likes: 0
check a technician and told me that we could have a problem with stretched chain/tensioner
however my engine has been only started for 160,000 km
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,370
Likes: 702
2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
The tech may be on the right path. 100,000 miles (~160,000 km) is where many of the M271 EVO (turbo I4) engines have experienced worn timing chains. The startup noise that you hear may be chain slap, but may also be the beginning of failing camshaft adjusters. When one or both of the adjusters fail completely, there will be additional trouble codes, the noise will be very loud, and the car will become hard to start. If you replace the timing chain, it may be a good time to replace the camshaft also if you can afford the extra cost. The camshaft adjusters on my ‘13 C250 failed first. I replaced both adjusters, the timing chain, and the tensioner all at one time because labor is a large part of the cost if you have a shop do the work.
Thread Starter
Newbie
Joined: Jan 2026
Posts: 3
Likes: 0
The tech may be on the right path. 100,000 miles (~160,000 km) is where many of the M271 EVO (turbo I4) engines have experienced worn timing chains. The startup noise that you hear may be chain slap, but may also be the beginning of failing camshaft adjusters. When one or both of the adjusters fail completely, there will be additional trouble codes, the noise will be very loud, and the car will become hard to start. If you replace the timing chain, it may be a good time to replace the camshaft also if you can afford the extra cost. The camshaft adjusters on my ‘13 C250 failed first. I replaced both adjusters, the timing chain, and the tensioner all at one time because labor is a large part of the cost if you have a shop do the work.
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,370
Likes: 702
2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
Putting my pad away for the night, I noticed my error:
”it may be a good time to replace the camshaft also if you can afford the extra cost.”
should read
”it may be a good time to replace the camshaft ADJUSTERS also if you can afford the extra cost.“
There should be nothing wrong with the camshafts themselves.
”it may be a good time to replace the camshaft also if you can afford the extra cost.”
should read
”it may be a good time to replace the camshaft ADJUSTERS also if you can afford the extra cost.“
There should be nothing wrong with the camshafts themselves.
