Which fuse is responsible for headlights?
AudiWorld Member
Joined: Apr 2019
Posts: 74
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Location of fuses, relays etc. AUDI Q7 4L
Since you have a 2008 Q7,you're gonna need the 1st Gen 4L schematic, so click/copy and paste the link below to your browser search bar to view the location of all fuses, relays etc related to your Audi...I would suggest you save it somewhere for future reference..hope it helps..
cheers..
https://fuseandrelay.com/audi/q7.html
cheers..
https://fuseandrelay.com/audi/q7.html
AudiWorld Member
Joined: Apr 2019
Posts: 74
Likes: 30
I forgot to mention that each individual headlight/bulb has their own separate fuses, so it is highly unlikely that both left and right will go at the same time, may be caused by something else, but it's a good place to start...if you have access to a Vagcom or VCDS scanner, you should get it scanned for deeper diagnostic information..
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AudiWorld Junior Member
Joined: Feb 2022
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I forgot to mention that each individual headlight/bulb has their own separate fuses, so it is highly unlikely that both left and right will go at the same time, may be caused by something else, but it's a good place to start...if you have access to a Vagcom or VCDS scanner, you should get it scanned for deeper diagnostic information..
Really wished if I can find a faulty fuse, it would be much easier then.
AudiWorld Super User
Joined: Jan 2021
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From: USA - NM
You absolutely need/require a VAG (Volkswagen Auto Group) compatible diagnostic scantool to trace faults on the Q7. You won't get anywhere with a standard OBD2, as it can't read the VAG coding to interface with the car properly. If you don't repair/service your own car normally, just get a basic tool, like the OBD-Eleven, which is optimized for VAG vehicles only...be careful not to buy into their 'upgrade' offers, which they will push at you; totally not worth the price of admission...they oversell it heavily, but it's very limited for this car, as to what it allows you to do. Emphasis on this is for beginners only; it will just read and clear codes for you, and has a nice, modern, smartphone interface, so it's easy.
If you do DIY, or want to future-proof yourself on this car, then you buy the VCDS diagnostic scantool, which is a one-time charge, and take advantage of the Ross-Tech software and forum support, which allows you not only see what's wrong, but you can often times repair the problem, such as a lighting control module, w/o the need for replacing anything at all. If you take it to a small shop, this is likely the tool they will hook up to scan this car for faults. It does all the advanced functions you need as an owner/DIY maintainer...it simply works.
If you do DIY, or want to future-proof yourself on this car, then you buy the VCDS diagnostic scantool, which is a one-time charge, and take advantage of the Ross-Tech software and forum support, which allows you not only see what's wrong, but you can often times repair the problem, such as a lighting control module, w/o the need for replacing anything at all. If you take it to a small shop, this is likely the tool they will hook up to scan this car for faults. It does all the advanced functions you need as an owner/DIY maintainer...it simply works.
Thread Starter
AudiWorld Junior Member
Joined: Feb 2022
Posts: 16
Likes: 0
You absolutely need/require a VAG (Volkswagen Auto Group) compatible diagnostic scantool to trace faults on the Q7. You won't get anywhere with a standard OBD2, as it can't read the VAG coding to interface with the car properly. If you don't repair/service your own car normally, just get a basic tool, like the OBD-Eleven, which is optimized for VAG vehicles only...be careful not to buy into their 'upgrade' offers, which they will push at you; totally not worth the price of admission...they oversell it heavily, but it's very limited for this car, as to what it allows you to do. Emphasis on this is for beginners only; it will just read and clear codes for you, and has a nice, modern, smartphone interface, so it's easy.
If you do DIY, or want to future-proof yourself on this car, then you buy the VCDS diagnostic scantool, which is a one-time charge, and take advantage of the Ross-Tech software and forum support, which allows you not only see what's wrong, but you can often times repair the problem, such as a lighting control module, w/o the need for replacing anything at all. If you take it to a small shop, this is likely the tool they will hook up to scan this car for faults. It does all the advanced functions you need as an owner/DIY maintainer...it simply works.
If you do DIY, or want to future-proof yourself on this car, then you buy the VCDS diagnostic scantool, which is a one-time charge, and take advantage of the Ross-Tech software and forum support, which allows you not only see what's wrong, but you can often times repair the problem, such as a lighting control module, w/o the need for replacing anything at all. If you take it to a small shop, this is likely the tool they will hook up to scan this car for faults. It does all the advanced functions you need as an owner/DIY maintainer...it simply works.
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