This universal tensioner spanner will fit nearly all VW®/Audi®timing belt tensioners (gas or diesel). Great for engines with little room between engine mount and tensioner. (like A4 TDIs®). This beauty will fit inside the motor mount and allow nearly 360° access to your timing belt tensioner. Machined from 1 piece of solid alloy steel no pins to rip out, includes handy flat wrench, lanyard and vinyl grip. Note: this is not for your alternator belt tensioner.