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1998 Mercedes R129 SL500 idling rough

  

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Hello, I have a 98 SL500 MB with 70K miles. It just started ideling rough , so I changed the plugs, and oil. It didn’t help. I looked on Utube and decided it might be the EGR valve. I can’t find it! It’s not by the firewall. Would you know where it is located ? I know if I take it in it will cost a fortune, and now that I’m retired, And don’t have a ton of cash laying around.

 

 


2 Answers
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If you want to keep an MB running without dealer intervention, you should first invest in a repair manual, like this one

https://repair.chiltondiy.com/1998/Mercedes-Benz/SL500/Repair-Manual-Online

Here's a discussion of which one would be best (and a forum for MB folks)

https://mercedesforum.com/forum/mercedes-sl-class-15/1998-sl500-repair-manual-needed-13877/

 


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https://mercedessource.com/problems/engine/understanding-and-testing-the-egr-valve


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