Removal and installation of ASR control unit (N30/1) - RA42001400821X(42-0821)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Operation no. of operation texts and work units or standard texts and flat rates

Models 124 and 129 (without models 124.034/036, 129.067/076)

Fig 1: Identifying ASR Control Unit Components - Models 124

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying ASR Control Unit Components - Models 129

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Ignition	OFF .
Cover	remove, install.
ABS/ASR control unit (N30/1)	remove from bracket (24), install.
Test program	perform (42-0822).

Models 124.034/036, 129.067/076 and 140

Fig 3: Identifying Cover Module Box

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Special Tools

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 5: Identifying ABS Control Unit

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Fig 6: Identifying Special Tools

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Ignition	OFF .
Cover of module box (F23)	remove, install.
ASR control unit (N30/1)	withdraw/press in using special tool 140 589 01 33 00.
Diagnosis - fault memory or test program	perform and erase faults (refer to Diagnosis Manual - Chassis).

Special tool

Fig 7: Identifying Special Tools (140 589 01 33 00 07)

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Model 126

Fig 8: Identifying ABS Control Unit - Model 126

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 9: Identifying Locking Device And Plug - Model 126

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Ignition	OFF .
Locking device (22)	operate and detach plug (21) from ASR control unit (N30/1). If the plug (21) is plugged into the ASR control unit (N30/1), ensure that it engages audibly in the locking device (22).
ASR control unit (N30/1)	remove from bracket, install.
Test program	perform (42-0822).

Model 201

Fig 10: Identifying ABS Control Unit And Battery - Model 201

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 11: Identifying Fixing Plate And Screws

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Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Ignition	OFF .
Battery (2)	remove, install.
Locking device	operate and disconnect plug (21) from ASR control unit (N30/1) If the plug (21) is plugged into the ASR control unit (N30/1), ensure that it engages audibly in the locking device.
Screws (3a)	unscrew, screw in.
ASR control unit (N30/1) with fixing plate (3)	remove, install.
Fixing screws (3b)	unscrew, screw in.
ASR control unit (N30/1)	remove from fixing plate (3), attach.
Test program	perform (42-0822).