Originally Posted by captain_quantas
MAF sensors, well maybe the reason I will sell my E320 that I otherwise love. Third sensor in 112K miles. At last found Mercedes Benz Parts, Mercedes Parts, Accessories
selling replacement element only for $ 129, instead of $270+ at dealer. Using OEM air filter, replace about 30 K miles.
Anyone with insight for frequent failure, preventive measures etc....help
Separate subject, on a very common problem: E320 dashboard clock display fails after about three years, followed the gear indicator missing pixels, and finaly lost the temperature read outs. Seen many of the same, dealer admits to problems but only solution is their $1500 replacement, one year warranty.
The problem appears to be an LCD driver or power supply.
Anyone with experience, advice or schematics, RSVP. Thanks
Hi, Captain, welcome to the forum. Please complete your online profile re: vehicle and location, which can be useful information.
Also, please come join us in the W210 forum (since you mention the pixel problem, and given your mileage I'm guessing your E320 isn't a W124) and you'll find lots of useful information, including sources to have your console repaired or swapped for a lot less than the dealer wants.
As to the recurring MAF issue, 30K seems like a long time for the air filter element, I think it's a B service item which would be 20K tops, more frequently if you're in a dusty/heavily polluted area. Beyond that, check your intake carefully to make sure there are no cracks or holes or detachments that could potentially admit unfiltered air upstream of the MAF. At the same time check the airbox, if someone removed it and reinstalled it improperly it will tweak the housing and then the filter doesn't fit tight...with resulting leakage, of course. Some folks also advocate using a light film of grease around the seal of the air filter to help it seal better, so that's another idea. All of that to say that I have not heard of MAFs failing that frequently on any car, much less the W210. If the mechanic was only charging you $270 I wonder if they were putting on the knock-off brand X; usually they charge well over $300 for the part plus a couple hundred to install it -- or more. But the insert you get from Germanstar will be the genuine Bosch product so you'll be sure about that one.
Anyway, come visit the W210 forum, lots of great folks in there.
Take care and enjoy the ride,