Question about fuel level sending unit

Feb 17, 2004 | 02:30 PM

QB320

Thread Starter

Almost a Member!

Joined: Nov 2001

Posts: 47

Likes: 0

Question about fuel level sending unit

Hello. I too now have the fuel sending unit problem (98 CLK320). Unfortunately, car is out of warranty. I'm not sure if the service manager will fix it with goodwill since it's a known problem.

Question: Is the unit simply for convenience (telling me when the gas is low) or will it cause any safety, performance, etc problems?

Thanks in advace.

J

Feb 17, 2004 | 04:19 PM

GDawgC220

MBWorld Fanatic!

Joined: Apr 2003

Posts: 4,781

Likes: 3

From: Boston

'05 A4 1.8TQM6

I believe the fuel sending unit is just to report back to the driver VIA the cluster how much fuel is left inside the tank, but there may be other uses for it.

I know that when our ML fuel gauge was off (when filled, it would only register 3/4's), they replaced the fuel sender unit and all was well again.

Feb 17, 2004 | 07:05 PM

redcoupe

Senior Member

Joined: Jan 2004

Posts: 402

Likes: 0

11 ML350

Your problem is just with the level sensor, so you'll be ok.

Brian

Feb 17, 2004 | 07:51 PM

sph17

Senior Member

Joined: May 2003

Posts: 332

Likes: 0

From: LI, NY

02 W163, 84 W123, 03 E39, 98 E39

Re: Question about fuel level sending unit

Quote:

Originally posted by QB320
Hello. I too now have the fuel sending unit problem (98 CLK320). Unfortunately, car is out of warranty. I'm not sure if the service manager will fix it with goodwill since it's a known problem.

Question: Is the unit simply for convenience (telling me when the gas is low) or will it cause any safety, performance, etc problems?

Thanks in advace.

J

There are two sending units in a W202 (C 280). The one closest to the fuel filler measures the pressure in the tank, and if the gas cap is left off, will put light the CEL. After replacing the cap, I am told the CEL goes out.

This is the only other use I know for these units.

Reply Subscribe