Hi my audi a4 2.6 does not start she is only cranking

SOURCE: Oil for 2007 AUDI A4 2.0t Quatro

The best balance of price, quality, availability that I have found is Mobil1 synthetic - it's on Audi's approved oils list. With the 2.0T engine, you absolutely want to use synthetic (the Audi turbo fours are known for oil sludge issues), and you want to do a SeaFoam treatment every 15k miles or so - that combination will keep your engine in great running shape.

SOURCE: Audi A4 Clutch Switch

you have the clutch switch mounted on top of the pedal, just like the brake, replace it....

SOURCE: Audi A4 2.5 TDi 2003 Quattro - Glowplugs not getting power

There is a relay which will make a `clunk` noise under the bonnet.
It can be heard a few seconds after the glow plug light on your dashboard goes out.
I would suggest that this is the problem. You may have to buy a new one. Very easy to do.
Quite cheap as well.

SOURCE: engine number location for 2002 audi a4

is it a 1.8 turbo or 2.8 V6 or 2.7 biturbo V6 ? on most models what you will be looking for is a 3 letter code like ATQ or APW and is normally on a sticker on the timing belt cover, it is also stamped into the engine on a ledge up high. if no luck there check the owners manual, around the 3rd page there will be a sticker that was put in the book during predelivery inspection this sticker is about 3 inches by 3 inches and filled with id codes for almost everything. If the pdi wasn't done right another copy of the same sticker will be under or next to the spare tire in the spare tire well.

SOURCE: audi a4 2.8 30v 1998 ack engine

It is mounted to the transmission bellhousing on the driver's side. The connector is mounted on the firewall and is a smaller, gray connector. You can reach the sensor from underneath.