Hi guys,we have this 1997 e320 canadian model with day time running lights,all the lights work on the car when you turn the switch on but when the engine is started and put in gear the low beam day time running lights and the tail lights should all come on but they dont,the headlight switch is a very large module with fuse box attached and looks very $$$$,anyone any ideas,thanks,John

I think your car is working fine, by design only the DRL comes on & the tail lights do not come on at all,
When you turn on the lights at night, it overrides the DRL circuit & the tail lights will come on

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Peter Chu aka PIKACHU
08 C300 Premium Pkg, MM Pkg, Sport Pkg, Keyless Go
86 300E soon to be E36 with Euro Headlights
400E front & rear brake upgrade
16" CLK wheels with Michelin MXV4 plus Green X