mkoons

Is the seat adjustment relay the one located next to the spare fuse box in the truck in front of the battery?

eFifty5AMG

This is what I used to remedy my intermittent seat issues.

https://mbworld.org/forums/c-class-w...tion-help.html

Sulaco

the relay beside the small fuse box in the trunk is for the fuel pump.

the relay(s) for the seats are underneath the big black plastic panel in front of (meaning, towards the front of the car) that is held down by 3 big plastic screw-type things. under there you will see 1 or 2 identical black relays, at least I think there's 2. anyway. seat relay. there.

there's a black power cable there for the fuel pump too. leave it alone. you'll see it plugging into the bottom of the car.

PJmak

My 43 has this problem as well as my sisters c230. I didnt know about this relay so ill look at it first chance.

Thanks

mkoons

ALL RIGHT, THANKS A LOT. THAT EXPLAINS WHY THE RELAY I HAD BOUGHT HAD A DIFFERENT PART NUMBER.

eFifty5AMG

One of the first things I fixed; drove me crazy! Not one issue since :thumbsup:

KJI3jflarryfe93

is this a common prob on C43, seat relays break?
i've seen many relays broken on w203 cars causing them to drain the battery

Sulaco

yes, very common in the US at least. but I think pre-update cars don't have this issue.

svt ricco

Our cars are 14-16 years old now, it'll break anytime now...

mkoons

Replaced relay part #025422219 and seats now work. $33. item.

venturaexit

I just replaced the relay $35 at local shop (Bavarian Auto Parts in No.Ho. So.Cal.) and works!

THANK YOU ALL!