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Home >> Mercedes Benz >> 2018 >> GLS450 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 166 Chassis 2 Of 2 >> Testing & Repair >> Detach/Mount ESP® Control Unit Connector >> Detach/Mount ESP® Control Unit Connector - AR42.45-P-0820-02EWD

Detach/Mount ESP® Control Unit Connector - AR42.45-P-0820-02EWD

Model 166, 231, 292 

with code 233 (DISTRONIC PLUS) 

Model 207, 212 

up to model year 2014 

with code 233 (DISTRONIC PLUS) 

Model 218 

up to model year 2015 

with code 233 (DISTRONIC PLUS) 

Fig 1: ESP® Control Unit Connector Components Location - Model 166 With Code 233 (Shown On Model 212)
G14138805Courtesy of MERCEDES-BENZ USA

Shown on model 212 

NOTES If there is any damage to the bracket (1), connector (2) or lock tab (1n), the corresponding parts must be replaced.

Otherwise, the connector (2) may work its way loose from the ESP® control unit (4) and the brake system may malfunction.

Detach electrical connection 

  1. Remove cap from electrical connection.
  2. Push both release tabs (1e), as shown, upwards and open connector locking mechanism.

    NOTES Do not use a tool and do not open lock tab (1n). Otherwise, the lock tab (1n), connector locking mechanism or the bracket (1) may be damaged.

  3. Swivel bracket (1) upwards approx. 90°.

    IMPORTANT Connector (2) is pushed slightly out of the jack (3) on the ESP® control unit (4).

  4. Pull connector (2) out of jack (3).

    NOTES While doing so, do not pull out connector (2) using the bracket (1).

    Otherwise, the bracket (1) and connector locking mechanism may be damaged.

  5. Swivel bracket (1) downwards until the connector locking mechanism latches.

    IMPORTANT To avoid damage to the bracket (1) and connector locking mechanism.

    Mount electrical connection 

  6. Push both release tabs (1e), as shown, upwards and open connector locking mechanism.

    NOTES Do not use a tool and do not open lock tab (1n). Otherwise, the lock tab (1n), connector locking mechanism or the bracket (1) may be damaged.

  7. Swivel bracket (1) upwards approx. 90°.
  8. Insert connector (2) far enough into the jack (3) on the ESP® control unit (4) until its entire length makes uniform contact with the jack (3).

    NOTES While doing so, do not insert connector (2) using bracket (1).

    Otherwise, the bracket (1) and connector locking mechanism may be damaged.

  9. Swivel bracket (1) downwards until the connector locking mechanism latches.

    IMPORTANT The connector (2) is drawn into its end position and locked.

  10. Mount cap to electrical connection.