Q7 4.2 FSI Engine - Interference?

SGI · 02-14-2007, 01:48 PM

Hi guys,

I'm looking to buy a Q7 4.2 Premium. For the experts in here, can you tell me if this engine is an interference type? Thanks!

-=SGI=-

Fxhomie · 02-17-2007, 09:59 PM

SGI · 02-24-2007, 03:17 PM

Thank you, that's even better news to hear!

-=SGI=-

brittcrowell · 02-26-2007, 09:32 PM

And if you got enough money to buy a new one, why do you care about a $2000 service 90,000 miles down the road?

Britt

SGI · 03-14-2007, 08:43 PM

If it's a timing belt on an interference engine like the 1.8T, I wouldn't let it go beyond 60-70K miles! That's why I want to know. I know that the 1.8T engine is interference BEFORE I bought a brand new car with that engine but I always keep reminding myself not to change the belt (and the tensioner) too late.

Knowing it early will help me (and I assume others looking for the same answer as well) prepare/avoid major repairs [and the headaches that comes with it] down the road.

Since this is the 4.2 V8 engine forum, I believe asking that question is justified, rather or not I have enough money to buy a new or a used car.

-=SGI=-

SGI · 03-14-2007, 08:55 PM

For those that's not sure why I want to know the answer to my original question, an interference engine will lost its synchronization between the Valve and Piston if the timeing belt slaps. This usually will cause major damages (read: lots of $$$$$ to repair) and the best way to avoid a major repair like that is to change the timing belt and tensioner BEFORE it slaps for an Interference Engine.

-=SGI=-

02-17-2007, 09:59 PM	#2
Fxhomie AudiWorld Senior Member Garage is empty, add now Join Date: Dec 2002 Location: Ross Valley, CA Posts: 1,236	shouldn't matter, it's timing chain-not timing belt. __________________

02-24-2007, 03:17 PM	#3
SGI AudiWorld Member Garage is empty, add now Join Date: Jan 2007 Posts: 136	Re: Q7 4.2 FSI Engine - Interference? Thank you, that's even better news to hear! -=SGI=-

02-26-2007, 09:32 PM	#4
brittcrowell AudiWorld Member Garage is empty, add now Join Date: May 2005 Posts: 356	What you allready buying one with 90K miles or something????? And if you got enough money to buy a new one, why do you care about a $2000 service 90,000 miles down the road? Britt __________________ 1997 A8 Quattro hot/cold 171,375 miles Tranny Dead! :-( Broken arm rest Broken cruise control (its a moot point now!) 2001 A8L Pearl White hot/cold Boss's Car (God She's Hot!) 87,774 miles

03-14-2007, 08:43 PM	#5
SGI AudiWorld Member Garage is empty, add now Join Date: Jan 2007 Posts: 136	Re: What you allready buying one with 90K miles or something????? If it's a timing belt on an interference engine like the 1.8T, I wouldn't let it go beyond 60-70K miles! That's why I want to know. I know that the 1.8T engine is interference BEFORE I bought a brand new car with that engine but I always keep reminding myself not to change the belt (and the tensioner) too late. Knowing it early will help me (and I assume others looking for the same answer as well) prepare/avoid major repairs [and the headaches that comes with it] down the road. Since this is the 4.2 V8 engine forum, I believe asking that question is justified, rather or not I have enough money to buy a new or a used car. -=SGI=-

03-14-2007, 08:55 PM	#6
SGI AudiWorld Member Garage is empty, add now Join Date: Jan 2007 Posts: 136	Re: What you allready buying one with 90K miles or something????? For those that's not sure why I want to know the answer to my original question, an interference engine will lost its synchronization between the Valve and Piston if the timeing belt slaps. This usually will cause major damages (read: lots of $$$$$ to repair) and the best way to avoid a major repair like that is to change the timing belt and tensioner BEFORE it slaps for an Interference Engine. -=SGI=-

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03-14-2007, 08:55 PM
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