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rpmdiag
rpmdiag, Tech and Instructor
Category: Mercedes
Satisfied Customers: 8068
Experience:  Since 1975
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I have a 1996 c280. took it in for a smog and it failed. OBD

Customer Question

i have a 1996 c280. took it in for a smog and it failed. OBD reader not ready and I was told to drive the car. Check engine light is on. everything else passed
JA: Does the light stay on, or does it blink?
Customer: it stays on. It just came on when car was taken to get smog.
JA: What is the make/model of your car?
Customer: 1996 mb c280
JA: Are you fixing your C280 yourself? What have you tried so far?
Customer: I have not driven this car for a whole year
JA: Anything else you want the mechanic to know before I connect you?
Customer: Car runs excellent. it belonged to my late mom and I have decided to drive it
Submitted: 10 months ago.
Category: Mercedes
Expert:  rpmdiag replied 10 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 10 months ago.

Okay, it sounds to me like you have a code in there that has not been addressed/fixed yet. The clearing of the computer will NOT help you until this issue is repaired.

Monitors run to completion after 3 consecutive/passable drive cycles ONLY if there are no fault codes.

Thanks,

Ron

Customer: replied 10 months ago.
Monitors run to completion after 3 consecutive/passable drive cycles ONLY if there are no fault codes. what does this mean
Expert:  rpmdiag replied 10 months ago.

It means that your car won't pass with a pending code that you have in the computers memory. This code that keeps turning on the light has tobe fixed. The monitors are being blocked from running until it's fixed.

Thanks again and please remember to rate me m5 stars and keep this link in case you need me again later on. Also, tell me what the codes is that keeps turning on the light

Ron

Expert:  rpmdiag replied 10 months ago.

The information I gave you was true and accurate.

Our goal here is to assist you in the repair of your vehicle by
supplying you with well educated information. We may not always
have the exact fix you wanted to hear, but our job is to get you on
the right track, which we always do. We can’t hear, see, smell or
touch your vehicle from where we’re at, so your understanding of
that is greatly appreciated. There are no magical or miraculous
answers, but we do our best to guide you in the right direction.

Thanks again, Ron

Expert:  rpmdiag replied 10 months ago.

If you are satisfied with my answer, I would greatly appreciate a 5
star rating now and I will still assist you after you have rated me
too if another question pops up. I don’t get credit for helping you
until you rate me.
Thanks again, Ron