Hi.

I have a set of Bosch euro-lights for my 89 420SEL and I'd like to use 80/100 watt bulbs for the headlights & 100 watt bulbs for the fogs when I install them.

Am I going to need to beef up the wiring and add some relays with the higher wattage bulbs? If anyone has done this on a W126 could you tell me specificaly what needs to be done?

Thanks,
Clay

For 80/100W, I think you can get away with the stock wiring, but it would be best to upgrade the wiring and use additional relays. See:

http://www.varshney.net/SEC/euro_install/

Courtesy of Anuj Varshney from the mbcoupes.com website.

Also, consider 100W bulbs may burn too hot for use in the plastic fog-light assemblies.

Cheers, Andrew Seidel.

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