Air bag issue on 1995 E200-124 (UK spec)

I'd like to hear from anyone who can shed any light on this problem.
When my SRS warning light came on, I took it straight to the specialist I use for servicing. Unfortunately, their diagnostic equipment failed to
communicate with the car, leaving them unable to determine exactly where the fault lay. They made a second attempt using a more 'hands-on' approach, but it continued to mystify them.
Finally, they suggested taking it to an MB dealership to see if they could diagnose the problem. When I did so the car also refused to 'speak' to the dealer's diagnostic software.
So, three visits to two garages and I'm back to square one, although I've no complaints about the efforts everyone has made to resolve this issue, especially since it hasn't cost me anything yet, other than my time.
The MB dealer suggested swapping out parts in order to eliminate the 'offender' but, at 77.00 per hour for labour, you can understand why I wasn't all that keen! The major item in question here is the control unit. If that has blown, then I'm looking at serious money (circa 800 for the MB dealer to replace it).
Fortunately, the failure by the MB dealer to identify the problem has breathed new determination into the specialist servicing garage and they have asked for another crack at the problem. For one thing, they intend to swap my control unit with one from an old 300D and, if that doesn't work, they appear to have a few more ideas up their sleeve.
If anyone has faced this problem, I'd be grateful for some practical suggestions.
TC
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Wow. Who is this specialist you speak of? And they don't charge you anything to diagnose the problem? Sounds like they've already spent hours trying to find your problem!
In Canada here, it would have cost me an arm and a leg already! You should give your "specialist" a plug here in case there are other fellow UK residents in need of his outstanding dedication and service. Wish there are shops around here in Vancouver that have that kind of dedication!! *sigh*
--
R Green
Tech Support
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In response to your request, see www.merc-care.com
TC

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