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I just want to say, that I love this site.
I have a 1994 S500 w/162K miles. It runs great, but the check engine light came on. I had a repair shop read the code. He said it was an EGR system fault, code 5. He said it was not critical, so I left it at that. I can imagine it could be anything, but I thought I would ask you experts, if there may be a common problem that I can start investigating.

Thanks in advance
 

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It's likely that the EGR tube is clogged with carbon deposits. It tends to happen over time. Your fuel economy will decrease and the car may start to run poorly. At the very least, you won't pass emmissions testing anywhere that does it. Did the tech give you an estimate for the repair?
 

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1994 s500 egr fault code 5

No, I just wanted to know from him if it woould ever leave me stranded any where. He was not sure what the cause would be and he just said where he would start to look. It only cost me $30 to check the code, so I thought if it comes on again, I would research it further.
 
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