Disconnect/connect battery ground line

AR54.10-P-0003RT

Disconnect/connect battery ground line

20.01.2020

Model

251

1

Guide rail cover

2

Floor covering

3

Bottom B-pillar paneling

4

Door sill

5

Nut

6

Ground cable

G1

Battery

 

Remove/install

Topical note

Notes on battery

AH54.10-P-0001-01A

1

Move right front seat all the way to the rear

 See operator's manual.

2

Switch off all electrical consumers


All electrical consumers must be switched off,
as otherwise, they may be damaged when the ground line (6) is connected/disconnected.

3

Switch off ignition and remove the transmitter key from the EIS [EZS] control unit

 In vehicles with code 889 (KEYLESS-GO): Press the KEYLESS-GO start/stop button repeatedly until the ignition is switched off. Remove transmitter key from vehicle and store it at a location beyond its transmission range (at least 2 m).

4

Unclip guide rail cover (1) and pull off guide rail toward front (arrow B)

 To unclip, insert a suitable tool into the opening on the guide rail cover (1) (arrow A) and unclip the guide rail cover (1).

5

Lift up floor covering (2) between front seat and lower B-pillar paneling (3) (arrow C)

 Installation: Ensure that floor covering (2) is seated correctly under lower B-pillar paneling (3) and door sill (4).

 Mounting wedge

*110589035900

6

Release nut (5) on battery negative pole terminal, disconnect ground line (6) from battery (G1)

 Ensure that no jumper start device is connected to vehicle.

 Nut, battery line to negative terminal/positive terminal

*BA54.10-P-1012-01C

7

Install in the reverse order

8

Perform basic programming

AR00.19-P-0200RT

9

Connect STAR DIAGNOSIS, read out fault memory and erase if necessary



AD00.00-P-2000-04A

 Battery

Number

Designation

Model 251

BA54.10-P-1012-01C

Nut, battery line to negative terminal/positive terminal

M6

Nm

6