Check Engine Light at 100K miles?
Thread Starter
Super Member
Joined: Nov 2001
Posts: 565
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From: the OC, So Cal
2000 CLK 320
Check Engine Light at 100K miles?
I did a search on this forum and didn't come up with anything so I thought I'd post the question.
Does the 'Check Engine' light come on automatically at 100K miles? Do the people here that have over 100K miles on their W202s have had that light come at that mileage?
Also, what are the usual/recommended maintenance features that should be done to the car at 100K miles? Thanks...
Does the 'Check Engine' light come on automatically at 100K miles? Do the people here that have over 100K miles on their W202s have had that light come at that mileage?
Also, what are the usual/recommended maintenance features that should be done to the car at 100K miles? Thanks...
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Joined: Jul 2004
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You can start by doing the 90K service... Goto Autozone and have your car hooked to a OBDII reader and see what the code is... probally O2 sensor.
Originally Posted by funky102
I did a search on this forum and didn't come up with anything so I thought I'd post the question.
Does the 'Check Engine' light come on automatically at 100K miles? Do the people here that have over 100K miles on their W202s have had that light come at that mileage?
Also, what are the usual/recommended maintenance features that should be done to the car at 100K miles? Thanks...
Does the 'Check Engine' light come on automatically at 100K miles? Do the people here that have over 100K miles on their W202s have had that light come at that mileage?
Also, what are the usual/recommended maintenance features that should be done to the car at 100K miles? Thanks...
Senior Member
Joined: Nov 2001
Posts: 291
Likes: 0
From: Portland, OR
2001 CLK320
Probably cause is
...the O2 sensors.
I'd have the car scanned to see what codes are present. The OBD-II cars that use heated O2 sensors have a service life of 100K miles for the sensor.
If the heater element dies, or the sensor response gets too sluggish it will make the CEL turn on.
On the 4 cyl engines, there is a pre- and post cat sensor.
I'd have the car scanned to see what codes are present. The OBD-II cars that use heated O2 sensors have a service life of 100K miles for the sensor.
If the heater element dies, or the sensor response gets too sluggish it will make the CEL turn on.
On the 4 cyl engines, there is a pre- and post cat sensor.
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