Get Mercedes to pull the codes. On my invoice it states that it was only 1 hour labour to diagnose the problem and the switch was it!
dtf, it is a happy ending

You sometimes never know. I could have got the call about ECM or worse!
I love my car again.....
Shaun
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1992 Pearl Black 500E (08/91)
SOLD
1997 White C36 AMG (T-Boned by Chevy truck)

2003 Silver C32 AMG (lease due, traded up)
2002 Pontiac Montana Vision
SOLD
2007 Volvo XC90 3.2

2005 E55 AMG (newest ride)