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Technical Data

Allocation PR-No./Brakes

The brake system installed in a vehicle is documented on the vehicle data sticker via the relevant PR number.

The vehicle data label can be found in the spare wheel well as well as in the Maintenance booklet.

The following tables show the break down of the affected PR numbers. They are important for the brake disc/brake caliper/brake drum combinations.

Brakes 

Brake System
Dual-circuit brake system with diagonal distribution, anti-lock braking system (ABS) with electronic brake distribution (EBD). Depending on equipment and construction, also with electronic differential lock (EDL), anti-slip regulation (ASR), electronic stability program (ESP)

Front Brakes 

Front Wheel Brakes
Brake caliper PR number   1LJ 1LL 1LK 1LM 1LN
Front brake caliper   FN3 FN3 FNR-G-57 FNR-G-57 FNR-G-57
Pistons Diameter mm 54 54 57 57 57
Brake disc PR number   1LJ 1LJ 1LK 1LK 1LK
Front brake disc Diameter mm 312 (16") 312 (16") 340 (17") 340 (17") 340 (17")
Brake disc thickness, ventilated mm 25 25 30 30 30
Brake pad wear limit mm 21 21 28 28 28
Brake pads            
Pad thickness, new (not including backing plate) mm 14 14 14 14 14
Brake pad wear limit (not including backing plate) mm 2 2 2 2 2
TT RS Front Wheel Brakes
Brakes PR number 1LA
Front Brake Caliper Brembo M4
Pistons 40 / 44 mm diameter
Brake disc PR number 1LK
Front brake disc 370 mm
Brake disc thickness, ventilated 32 mm
Brake pad wear limit 30 mm
Brake pad wear limit (not including backing plate) 2 mm

Rear Brakes, FWD 

Rear Wheel Brakes, FWD
Brake caliper PR number   2ED 1KZ
Rear brake caliper   CII 38HR CII 38HR
Pistons Diameter mm 38 38
Brake disc PR number   2ED, 2EE 1KZ and 1KJ,
Rear brake disc Diameter mm 286 (16") 286 (16")
Brake disc thickness, not ventilated mm 12 12
Brake disc thickness, ventilated mm ------ ------
Brake disc wear limit mm 9 9
Brake pads      
Pad thickness, new (not including backing plate) mm 12 12
Brake pad wear limit (not including backing plate) mm 2 2

Rear Brakes, AWD 

Rear Wheel Brakes, AWD
Brake caliper PR number   1KJ 2EE 2EA 2EF 2EG
Rear brake caliper   CII 41HR CII 41HR CII 41HR CII 41HR CII 41HR
Pistons Diameter mm 41 41 41 41 41
Brake disc PR number   1KJ, 1KZ 2EE, 2ED 2EA 2EF 2EG
Rear brake disc Diameter mm 286 (16") 286 (16") 310 (17") 310 (17") 310 (17")
Brake disc thickness, not ventilated mm 12 12 ------ ------ ------
Brake disc thickness, ventilated mm ------ ------ 22 22 22
Brake disc, wear limit mm 9 9 19 19 19
Brake pad wear limit (not including backing plate) mm 2 2 2 2 2
TT RS Rear Brakes
Rear Brake Caliper CII 41 HR
Pistons diameter mm 41
Rear brake disc diameter mm 312
Brake disc thickness, ventilated mm 22
Brake disc, wear limit mm 19
Brake pad wear limit (not including backing plate) mm 2