Towbar Wiring Gudie - VAG - Intro
IF YOU CHOOSE TO USE ANY OF THE FOLLOWING INFIRMATION YOU DO SO ENTIRLY AT YOUR OWN, AND YOUR VEHICLES RISK.THIS IS NOT A SET OF INSTRUCTIONS SO DO NOT APPLY ANY OF THE KNOWLEDGE YOU MAY AQUIRE FROM READING THE BELOW TEXT.
Towbar Wiring Gudie - VAG - Complications
If you read various forums on line regarding the installation of towbar wiring you will see all sorts of horror stories relating to ECU etc. In the opast when fitting a towbar I have just used scotch clips or soldered the towbar electrics directly on to the existing lighting wires, which on a G reg VW Golf, N Reg Peogeout 106, 2003 Reg Renault Kangoo have all worked fine with no issues. But newer cars are more intelligent with sensores everywhere and you may (i have read) get probelms by this direct wiring appraoch.
Towbar Wiring Gudie - VAG - Why?
Our newer 2006 Audi A4 has an in built computer that tells you when you have a bulb fualt, bing bing bing. If I were to directly wire a towbar lighting to the exist wiring i would probably start to see faults, becuase the current flowing through the wires would incraes and the car would "know".
Towbar Wiring Gudie - VAG - What to Do.
If you VAG car is a clever car witha bulb snsing computer you will need to buy a dedictaed wiring kit, or perhaps you could make do with a by-pass relay. Both of these work by powering the towbar electrics from a sepearte supply. Expect to pay around £15 to £30 for a bypass relay.
With a by-pass relay you may be able to find a suitable power source towards the rear of the car, a 10A cigaret type power socket for example. But in most cases you will need to run a supply from the frount of the car.
For dedicated wiring kit you will need to pay £100 instead of £7, and dismatle the entire car to fit the wiring. . .
Both of these methods keep the current in the wiring very sinilar to pre towbar levels, and the computer will not notice.
Towbar Wiring Gudie - VAG -Really?
If you ECU does not have anything to do with your lights, then maybe you can get away with direct wiring, but owing to the fact that ECUs cost so much and a by pass relay is only £30 max, is it worth the risk??
I have wired the tow lights directly to the existing wires on my VW Polo 51 (2001) plate. It works fine.
Eco Label
Illustrator Devon
IF YOU CHOOSE TO USE ANY OF THE FOLLOWING INFIRMATION YOU DO SO ENTIRLY AT YOUR OWN, AND YOUR VEHICLES RISK.THIS IS NOT A SET OF INSTRUCTIONS SO DO NOT APPLY ANY OF THE KNOWLEDGE YOU MAY AQUIRE FROM READING THE BELOW TEXT.
Towbar Wiring Gudie - VAG - Complications
If you read various forums on line regarding the installation of towbar wiring you will see all sorts of horror stories relating to ECU etc. In the opast when fitting a towbar I have just used scotch clips or soldered the towbar electrics directly on to the existing lighting wires, which on a G reg VW Golf, N Reg Peogeout 106, 2003 Reg Renault Kangoo have all worked fine with no issues. But newer cars are more intelligent with sensores everywhere and you may (i have read) get probelms by this direct wiring appraoch.
Towbar Wiring Gudie - VAG - Why?
Our newer 2006 Audi A4 has an in built computer that tells you when you have a bulb fualt, bing bing bing. If I were to directly wire a towbar lighting to the exist wiring i would probably start to see faults, becuase the current flowing through the wires would incraes and the car would "know".
Towbar Wiring Gudie - VAG - What to Do.
If you VAG car is a clever car witha bulb snsing computer you will need to buy a dedictaed wiring kit, or perhaps you could make do with a by-pass relay. Both of these work by powering the towbar electrics from a sepearte supply. Expect to pay around £15 to £30 for a bypass relay.
With a by-pass relay you may be able to find a suitable power source towards the rear of the car, a 10A cigaret type power socket for example. But in most cases you will need to run a supply from the frount of the car.
For dedicated wiring kit you will need to pay £100 instead of £7, and dismatle the entire car to fit the wiring. . .
Both of these methods keep the current in the wiring very sinilar to pre towbar levels, and the computer will not notice.
Towbar Wiring Gudie - VAG -Really?
If you ECU does not have anything to do with your lights, then maybe you can get away with direct wiring, but owing to the fact that ECUs cost so much and a by pass relay is only £30 max, is it worth the risk??
I have wired the tow lights directly to the existing wires on my VW Polo 51 (2001) plate. It works fine.
Eco Label
Illustrator Devon
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