why is it so important to replace the timing belt before it breaks on these audi's? i broke my timing belt on my mr2 doing 70+mph, everything just shut off, towed it to my mechanic, put new belt on, was on the road again. no motor probs or anything. i belive if it aint broke, dont fix it.

 

Audi's have interference engines. If the timing belt breaks, the pisons will hit the valves causing a LOT of damage. $$$$

 

damn thats sucky. what type of motor is in the mr2? non-interferience??

 

Both the MK1 and MK2 are non-interference engines.

 

sounds silly that they wouldnt just make all motors non-interferince. or maybe its part of an audi scandal to make us all pay dearly at stealerships

 

Unfortunately, most engines are interference. One major exception are the toyota engines. Somewhere I have a PDF of engine type.

 

if u dont change your belt this is whats gonna happen, your valves stay open and your pistens start poundin them and damagin everything

 

At what Mileage do you guys recommend changing the timing belt on a car with normal daily driving 'wear and tear'.

 

60k to 80k with NORMAL driving.

 

Dpeends, most of the failures are due to failure of the timing belt tensioner. The tensioner has been updated to a more reliable design. My car recommends 105K miles to do it (2000 ATW engine). That said, I replaced everything at 80K miles, including the front seals.

Better safe than sorry.