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Matt
Matt, Mechanical Engineer
Category: Audi
Satisfied Customers: 22166
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Can I change my halogen head light bulbs for LED bulbs on Q5

Resolved Question:

can I change my halogen head light bulbs for LED bulbs on Q5 2014 plate
Submitted: 1 month ago.
Category: Audi
Expert:  Matt replied 1 month ago.

hello

the main issue with switching to LED bulbs is that the resistance of the bulb is often a lot lower than the original halogen

and this can play havoc with the bulb diagnosis system and also the body control unit

now the higher quality LED bulbs feature an internal resistor to match the original bulb so what you've purchased may be OK

the thing to do is use a meter to measure the resistance of the new bulb vs the old as they need to be within a few ohms of each other

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