Discussion
Best place to check is www.rs246.com
There has been a similar debate on the RS4. All the A4's (including the S4) have a towbar kit apart from the RS4. I think it's to do with the rear bumper.
Apparently there is some regulation that you can't cut the bumper to fit a towbar or something. I can't really remember, but there is certainly some regulatory and/or bureaucratic reason why you can't fit one if the manufacturer doesn't offer it.
There has been a similar debate on the RS4. All the A4's (including the S4) have a towbar kit apart from the RS4. I think it's to do with the rear bumper.
Apparently there is some regulation that you can't cut the bumper to fit a towbar or something. I can't really remember, but there is certainly some regulatory and/or bureaucratic reason why you can't fit one if the manufacturer doesn't offer it.
Tow bars on the RS6 are not Audi recommended, as the load will increase the oil temp in the trans and motor oils to unacceptable levels. The twin turbos need a minimum oil pressure to operate without failure. Oil pressure reduces with an increase in tempreature caused by over loading. The oil temp gauge on the dash should give you a clue to how critical this is.
Audi have deemed warranties will be invalid if bars are fitted.
The old RS4 and the current S4 are similarly affected.
Audi have deemed warranties will be invalid if bars are fitted.
The old RS4 and the current S4 are similarly affected.
crbox said:
Tow bars on the RS6 are not Audi recommended, as the load will increase the oil temp in the trans and motor oils to unacceptable levels. The twin turbos need a minimum oil pressure to operate without failure. Oil pressure reduces with an increase in tempreature caused by over loading. The oil temp gauge on the dash should give you a clue to how critical this is.
Audi have deemed warranties will be invalid if bars are fitted.
The old RS4 and the current S4 are similarly affected.
The current S4 isn't turbocharged either, hence my question. Anything else you're not clued up on?
mal said:
If you did you might break the world caravan speed record!
or perhaps not!!!!!!!!!!!!
www.pistonheads.co.uk/gassing/topic.asp?f=107&h=&t=97081
The current S4 isn't turbocharged either, hence my question. Anything else you're not clued up on?[/quote]
Look, chaps it's simply like this.
I test drove an S4 Avant and asked the dealer if a tow bar could be fitted to trail my competition car.
After initially saying no problem, I asked the dealer to make sure, as he would need to fit a warranty approved item.
Audi came back saying no way, as the oil cooler wasn't up to coping with the temperature increase caused by the increased load. This will result in lower oil pressure.
Eventually I bought an RS6, which won't tow for similar reasons. The twin turbos just make good oil pressure more vital.
Warranty issues aside.In the real world, I guess any body can safely tow with these cars, just watch the oil temp.
P.S.
If anyones remotely interested in my experiences of the RS6,I've reported on them under Robert Farrago's road test.
I realise that I'm fortunate to own it, but never the less, it's not all total perfection.
crbox said:
The current S4 isn't turbocharged either, hence my question. Anything else you're not clued up on?
Look, chaps it's simply like this.
I test drove an S4 Avant and asked the dealer if a tow bar could be fitted to trail my competition car.
After initially saying no problem, I asked the dealer to make sure, as he would need to fit a warranty approved item.
Audi came back saying no way, as the oil cooler wasn't up to coping with the temperature increase caused by the increased load. This will result in lower oil pressure.
Eventually I bought an RS6, which won't tow for similar reasons. The twin turbos just make good oil pressure more vital.
Warranty issues aside.In the real world, I guess any body can safely tow with these cars, just watch the oil temp.
P.S.
If anyones remotely interested in my experiences of the RS6,I've reported on them under Robert Farrago's road test.
I realise that I'm fortunate to own it, but never the less, it's not all total perfection.[/quote]
Thanks for that - I'll read with interest because your info ahs made me think twice about my plans to buy one to replace the S4.
crbox said:
The current S4 isn't turbocharged either, hence my question. Anything else you're not clued up on?
Look, chaps it's simply like this.
I test drove an S4 Avant and asked the dealer if a tow bar could be fitted to trail my competition car.
After initially saying no problem, I asked the dealer to make sure, as he would need to fit a warranty approved item.
Audi came back saying no way, as the oil cooler wasn't up to coping with the temperature increase caused by the increased load. This will result in lower oil pressure.
Eventually I bought an RS6, which won't tow for similar reasons. The twin turbos just make good oil pressure more vital.
Warranty issues aside.In the real world, I guess any body can safely tow with these cars, just watch the oil temp.
P.S.
If anyones remotely interested in my experiences of the RS6,I've reported on them under Robert Farrago's road test.
I realise that I'm fortunate to own it, but never the less, it's not all total perfection.[/quote]
of course, with a trailer the increase in load takes place with a reduction in speed, hence reduced airflow for cooling - both via the oil cooler, radiator and direct cooling of the sump, so it's not that unreasonable of Audi to forbid towing...
Might have been more proactive of them to spec an additional cooling pack for towing though...
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