I have a few bulbs to replace on my new '04 D2 so I was thinking about upgrading the exteriors to all LED; turn signal, brake light, side repeater, etc, etc.

Without adding load resistors I haven't seen an LED relay available at the usual places. I understand it is controlled by the "brain" not a relay? What can I expect for hyper-flash or how are others correcting?

 

I have an 03 and mostly LED bulbs in it. I went with a resistor to retain regular flash rate.

Cruise control might not work when you change the brake bulbs. The system will no longer see its expected load.

I had a really weird failure in a LED brake bulb which would cause interior lights and other exterior lights to come on. New bulb sorted that.

And, I found a prior change to the third brake light wiring was causing issues with a LED replacement. Sorted that too.

Overall I really like the LED marker, indicator, brake, back up, and rear fog lights with LEDs.

 

You need the dummy load resistors for the flashers. There is an electronic circuit inside the fuse assembly (cabin/drivers drivers side) and no option for a different relay.

 

I went with these, no need for anything else, work great, bright as heck...https://www.ebay.com/itm/17413864628...53.m2749.l2649