Remove/Install Left Rear Bumper Radar Sensors For Blind Spot Assist - AR54.71-P-0100LF
Model 217, 222
With Code 233 (DISTRONIC PLUS)
Model 217, 222
With Code 234 (Blind Spot Monitoring)
Model 217, 222
With Code 237 (Active Blind Spot Assist)
Shown On model 222 as of model year 2018
Fig 1: Left/Right Rear Bumper Radar Sensor Components Location - Model 222 With Code 233, 234, 237 (Shown As Of Model Year 2018)
| Topical note | Notes on preventing damage to electronic components due to a magnetic tool | AH54.00-P-0002-01A | |
| Topical note | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Remove/install | |||
| 1 | Commission rear left bumper radar sensor (B29/6) or rear right bumper radar sensor (B29/7) | When replacing the left rear bumper radar sensor (B29/6) or the right rear bumper radar sensor (B29/7). | |
| AD00.00-P-2000-04B | |||
| 2 | Remove rear bumper | Model 217 | AR88.20-P-2200LC |
| Model 222 | AR88.20-P-2200LF | ||
| 3 | Disconnect electrical connector (1) | ||
| 4 | Unscrew bolt (2) | Model 217, 222 as of model year 2018 | |
| 5.1 | Unlock retaining lug and remove left rear bumper radar sensor (B29/6) or right rear bumper radar sensor (B29/7) from bracket (4) | Model 217, 222 up to model year 2018 | |
| 5.2 | Release retaining lugs (3) and remove rear left bumper radar sensor (B29/6) or rear right bumper radar sensor (B29/7) from holder (4) | Model 217, 222 as of model year 2018 | |
| 6 | Install in the reverse order |