Electronic stability program (ESP): Fault code C1140, C1145, C1185, C1186 and/or C1187 - AF42.45-P-8109A

MODEL 163.113 /128 /154 /157 /175 #A as of 371935 up to 442083 with ESP control unit ESP MK25 

Operation no. of the operation texts or standard texts and flat rates

Range	Op. no.	Operation text	Flat rate	Acc. no.	Code
P	541011	Perform quick test	004 WU	-	-
P	024170	Replace contact sockets in connector for ESP control module MK25 (after testing)	018WU	-	-

Damage code	Cause	Remedy
59 110 74	Increased resistance on terminals in connector for ESP control unit (N47-5) due to oxidation.	DO NOT replace ESP control unit ↓
		Repair wiring harness connector on ESP control module.	SM42.45-P-0001GH
		If fault codes are ACTIVE ↓ 2.1 Perform diagnostic test on brake pressure sensor (B34/2) and brake booster piston travel sensor (A7/7b1) using STAR Diagnosis. If brake pressure sensor found to be faulty ↓
		3.1 Replace brake pressure sensor (B34/2). If brake booster piston travel sensor found to be faulty ↓	AR42.45-P-0816GH
		4.1 Replace brake booster piston travel sensor (A7/7b1).	AR42.31-P-6002GI

Parts ordering notes

Part no.	Designation	Quantity
163 540 12 17	Brake booster piston travel sensor	1
002 542 84 18	Brake pressure sensor	1