Operation CHARM: Car repair manuals for everyone.

Steering and Suspension: Description and Operation






Explanations of the Production Control Numbers (PR number)

The vehicle data plate documents which front/rear axle or tire pressure monitoring system is installed using the corresponding PR numbers.

There is a vehicle data label in the spare wheel well and also one in the customer Maintenance booklet.

Front/Rear Axle






The front/rear axle PR No. is in illustration - A and B -.

- The front axle PR number is item - A -.

- Item - B - shows PR number for the rear axle

The correct shock absorber combination is found in the electronic parts catalog using the PR number.

Suspension Versions






The suspension version PR No. is in illustration - arrow -

In this example the vehicle has standard suspension 1BA installed.

1BA = Standard suspension

1BE = Sport suspension

1BD = Sport suspension S4

1BR = Heavy duty suspension

1BV = Sport suspension S line

1BL = Chassis with electronic damping

1BB = China City Suspension

1BP = Steel Spring Suspension allroad

Tire Pressure Monitoring System/Tire Pressure Monitoring System Display

The tire pressure monitoring system PR number can be found in ELSA under "Vehicle Data".

7K0 = without tire pressure monitoring system

7K6 = Tire Pressure Monitoring System Display, refer to => [ Tire Pressure Monitoring Display (PR7K6) ] Tire Pressure Monitoring Display (PR7K6).

7K8 = Tire Pressure Monitoring System, Frequency 315 MHz Basis, refer to => [ Tire Pressure Monitoring System (PR7K8) ] Tire Pressure Monitoring System (PR7K8).

Driver Assist System

The driver assist system PR number can be found in ELSA under "Vehicle Data".

7Y2 = lane assist

7Y3 = lane change assistance and lane assist

8T4 = Adaptive Cruise Control (ACC)