audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
General repair instructions > < Transmission layout

A3 Mk1

Calculating ratio “i”
Calculating ratio “i”
Example:
   
 5th gearFinal drive
Drive gearZG1 = 43ZA1 = 17
Driven gearZG2 = 36ZA2 = 72

i = Z2 : Z11)
iG = gear ratio = ZG2 : ZG1 = 36 : 43 = 0.837
iA = axle ratio = ZA2 : ZA1 = 72 : 17 = 4.235
iov = overall ratio
iov = iG x iA = 0.837 x 4.235 = 3.545
1) Z1 = No. of teeth on drive gear, Z2 = No. of teeth on driven gear
   

General repair instructions > < Transmission layout