Fitting a new fan belt

The serpentine belt diagram for Audi A4 1.9 TDI:



CS = Crankshaft
F = Fan pulley
Gen = Alternator
T = Tensioner
AC = Air Conditioning
PAS = Power Assisted Steering

it a bit of a simple drawing but thats how it go's hope this helps

yes it will and most likely put a hole in the piston and snap the cam shaft if the engine is doing any more than idle speed, if it breaks at idle you may be lucky and just get away with a few bent valves but if im honest ive never seen anyone be lucky with one the normaly require a new engine. also worth changing the water pump at the same time as these do seize and will snap the new cam belt ! the only belt you can get away with leaving is the pump belt if this breaks no damage is caused the engine will just cut out ! however you will need to pretty much remove it after fitting a cambelt to set the timing so its pretty pointless no to change it

for the most part there is a diagram under the hood but give this website a try Drive belt Diagram www.webcrawler.com wish you the best of luck Michigan Man.

remove top of fan cowling 2 clips draw a diagram of belt route put spanner on tensioner pulley bolt turn clockwise remove belt with assistant helping keep tensioner pulled back fit new belt over pulleys release tensioner onto belt refit cover

You'll need a torque wrecn and a degree tools (most auto parts stores sell them). Torque sequence is 15lbs, then 37lbs then 130 degrees.

im trying to upload a pic of the belt routing it wont let me email me i can send it to you [email protected]

regards John

go to mercedes benz website and download your owners manual it's in there - or look at the one you have
mbwebsite - owner support - download manuals

is the right belt fitted?its seems from what you are saying this belt is to small? check this out and check chassis number against new belt ref number;; if the wrong belt is fitted as you say then indeed it will pull the bearings in the alternator and run them out;as for the belt run this is a straight forward.let me know the out come.adrian

Most have a diagram somewhere under hood.