Is your E-class also E85? What does your fuel cap look like?
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Super Member
Joined: Sep 2013
Posts: 971
Likes: 182
From: DFW, TX
2014 E350 Wagon, 2025 GLC 350e, 2026 E53 Wagon
Is your E-class also E85? What does your fuel cap look like?
When I had a lonaer E350 I noticed that the fuel cap was different than my E350 4Matic wagon.
Loaner:
Mine:
So it got me wondering why the two fuel caps were different. It had to do with a build option code 929 - ENGINE FOR ETHANOL FUEL.
The loaner had this build code while my car doesn't. I wonder what makes the difference and why one was built with it and the other one wasn't.
First I thought it had to do with 4Matic vs. RWD but I found a 4Matic sedan (212.088) VIN that also had the 929 build code on its build sheet so it has nothing to do with 4Matic or not. I have yet to find an E500 with the 929 build code so it might only be an E350 thing.
Loaner:
Mine:
So it got me wondering why the two fuel caps were different. It had to do with a build option code 929 - ENGINE FOR ETHANOL FUEL.
The loaner had this build code while my car doesn't. I wonder what makes the difference and why one was built with it and the other one wasn't.
First I thought it had to do with 4Matic vs. RWD but I found a 4Matic sedan (212.088) VIN that also had the 929 build code on its build sheet so it has nothing to do with 4Matic or not. I have yet to find an E500 with the 929 build code so it might only be an E350 thing.
