LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 1995 >> E420 >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Brakes - 140 Chassis) >> General Information >> Notes on installing brake pad wear sensor contact sensors - AH42.10-P-0003-01A

Notes on installing brake pad wear sensor contact sensors - AH42.10-P-0003-01A

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.

The following variants exist on the front axle:

One contact sensor, two contact sensors or four contact sensors.

The following variants exist at the rear axle:

No contact sensor, one contact sensor, two contact sensors or four contact sensors.

Vehicles with ETS, ESP or ASR have contact sensors for the brake lining wear indicator.

When changing the brake pads as many contact sensors should be installed in the same position as were present.

If only one contact sensor is installed on a brake caliper, then this is to be fitted again to the same brake pad and in the same position.

IMPORTANT

As a result of moisture, unconnected contact sensors cause the brake pad wear warning lamp to illuminate.

IMPORTANT

The contact sensor line must be routed as shown in the picture. Only transparent (temperature-resistant) contact sensors must be installed at the rear axle.

Illustrated on model 129 

Fig 1: Locating Right Rear Brake Pad Wear Contact Sensor
G04607210Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Contact sensor location 

(not for model 163 and model 690.6) 

For reasons of replacement parts simplification, the brake linings must be installed so that the contact sensors can be installed in the corresponding installation position.

The corresponding installation of the contact sensors can be obtained from the tables below.

Fig 2: Identifying Contact Sensor Location
G04607211Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Model 129 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 6/94 E28, E32 • • • •        
7/94 to 6/96 E28, E32 •     •        
As of 7/96 E28, E32   • •         •
Up to 6/94 E50, E60 • • • • • • • •
7/94 to 6/96 E50, E60 •     • • • • •
As of 7/96 E50, E60 •     •       •
Model 140 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 6/94 all • • • •        
7/94 to 6/95 without ETS, ASR •     •        
7/94 to 6/95 with ETS [electronic traction system], acceleration slip regulation [ASR] •     •       •
As of 7/95 all •     •        
Model 168 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  all       •        
Model 170 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 6/96 E20, E20ML •     •        
As of 7/96 E20, E20ML   • •          
  E23ML   • •          
  E32, E32ML •     •        
Model 171 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  171.442     •          
  171.454     •          
  171.456     •         •
Model 202 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 6/94 with ASR • • • • • • • •
7/94 to 6/95 with ASR •     • •      
Up to 6/95 without ASR •     •        
7/95 to 6/96 E18, E20, E23, E24, E28, E43AMG [manual transmission], D20, D22, DE22LA •     •        
7/95 to 6/96 E20ML, E23ML, D25LA   • •          
As of 7/96 E18, E20, E23, D20, D22, DE22LA •     •        
As of 7/96 E20ML, E23ML, E24, E28, D25LA   • •          
Model 203 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 3/01 except E32, E32ML   • •          
Up to 3/01 E32   • •         •
Up to 3/01 E32ML •     • •     •
As of 4/01 except E32, E32ML     •          
As of 4/01 E32     •         •
As of 4/01 E32ML •     •       •
Model 208 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  except E43   • •          
  E43 •     •       •
Model 209` Version Front axle Rear axle
1 4 5 6 7 8 9 10
  E20, E20ML     •          
  E32     •         •
  DE27LA     •          
  E50       •       •
Model 210 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 6/96 with ASR except E42 •     •        
Up to 6/96 without ASR except E42   • •          
Up to 6/96 E42 with ASR   • •         •
Up to 6/96 E42 without ASR •     •       •
As of 7/96 Except E43, E55AMT   • •          
As of 7/96 E43, E55AMT [Manual transmission] •     •       •
Model 211 Version Front axle Rear axle
1 2 3 4 5 6 7 8 9 10
Up to 10/02 all   •       •     •  
As of 11/02 except E50, DE40LA   •       •     •  
As of 11/02 E50, DE40LA     •     •     •  
as of MY 05 all           •     •  
Model 215 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 8/02 all •     •       •
As of 9/02 all       •       •
Model 216 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  Type 216.371       •     •  
  Type 216.376     •       •  
  Type 216.377     •       •  
Model 219 Version Front axle Rear axle
1 2 3 4 5 6 7 8 9 10
  219.322/ 356/357/ 372/375   •       •     •  
  219.376/ 377     •     •     •  
Model 220 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 8/02 all •     •       •
As of 9/02 all       •       •
Model 221 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  Engine 272/273/642, engine 629 without code Z07, engine 275 with code 494/498/625 without Z07       •     •  
  engine 275 without code 494/498/625/Z07     •       •  
  engine 275/629 with code Z07     •       •  
  Engine 156     •       •  
Model 230 Version Front axle Rear axle
1 4 5 6 7 8 9 10
Up to 8/02 all •     •       •
As of 9/02 all       •       •
Model 240 Version Front axle Rear axle
1 4 5 6 7 8 9 10
  all •     •       •
scientia non olet · About LEMON Manuals