SRS Light - components replaced but light keeps appearing...

[Autobahner]

Hi Everyone,

I've had my 2000 ML 320 with the dealership for 5+ days now and they still can't figure out the problem. SRS light is on and they can't figure out why it keeps coming back on. I've reviewed many posts and nothing is helping what's listed in this and other forums.

Here's the situation... SRS light is appearing again and again - the dealership has replaced an item and wiped memory. The stealership has replaced the SRS control unit (old one said it could not be reset then swapped driver steering wheel airbag (with their service ML) and steering squib sensor (steering position sensor). The SRS light still comes on when test driving.

The computer is still indicating fault code of the SRS control unit not giving (so I'm told..) any other faults. Now the mechanics are checking each electrical contact going into and out of the SRS control unit to ensure wiring integrity.

Can someone please give some experienced input as to what the situation could be? The free loaner car period is running out today (not my fault they can't figure out the problem within reasonable time period) and therefore I'll either have to rent or have no car.

Is there a specific component that would trigger this fault code? Other than what's been replaced? (There are no seat sensors on this vehicle.)

Somewhere in the wiring or another place where faults can trigger the SRS light? As I don't have access to the mechanics computer and its error codes - I can't specify the codes here.

Thanks for the help!