Project Chronicle

A few days ago, the SRS light popped on the E55. When I purchased the car, this light was illuminated for unknown reasons, but it was cleared and off for the better part of four months after it spent a week at my shop in Rhode Island. 

Now, I'm a week away from getting it inspected here in Maryland and the SRS light pops on (because of course it does.) After reading numerous old forum posts, the consensus seems to be that the Foxwell NT530 scanner and code reader - a Chinese made device with virtually no customer support - is the way to go, especially since they sell it with Mercedes-specific coding and a 38 pin connector for attaching to the car via the fuse box. 

I got it from Amazon for about $200 and gave it a whirl today. Historically, getting rid of an SRS fault code has been quite tricky, with most owners telling folks in this predicament to suck it up and go to the dealer; thankfully, my code was wiped clean with ease, so kudos to this Chinese-made scanner for building a product that actually works and saved me a trip to the shop.

We pushed through an incredible amount of work before moving to Maryland, with the Audi S6, BMW 325is, and Mercedes-Benz E55 all getting long-simmering projects wrapped up before leaving town. 

The E55 was a pretty solid car overall, but a few lingering issues remained: the A/C showed signs of previous dye testing and my shop assessed that the evaporator and compressor were in need of replacement. Well, we charged the system back in May and guess what? It lost barely any refrigerant, meaning the system was far tighter than expected. 

We did flag a few other issues, including a weak auxiliary cooling fan (replaced); a busted HVAC resistor (caused the system to run full-blast at all times); and a fan clutch near death based on how slowly it was rotating. With those components replaced, we now have a fairly buttoned-up HVAC system, and hopefully have bought some time before the evaporator and compressor someday do reveal themselves to be problematic. 

I also elected to have the shocks replaced, as the car still had the OEM Bilsteins and it had previously been lowered on H&R springs, which I believed contributed to a very harsh ride. Koni Sports were swapped in and definitely increased the composure of the ride.

With all that done, the very daily-friendly E55 is already more so than before.