Retrofit Alcohol Breathalyzer - AZ54.21-P-0011MFA
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Model 118
as of model year 2023
Alcohol breathalyzer installation areas
| Notice | Notes on retrofitting electrical/optical lines | AH82.00-P-0000-01A | |
| Notes on retrofitting an alcohol breathalyzer | AH54.21-P-0001-08A | ||
| Remove | |||
| 1 | Expose signal acquisition and actuation module (N10). | ||
| AR54.21-P-1254MFA | |||
| Cab signal acquisition and actuation module control unit (SCA), component description | GF54.21-P-0007L | ||
| 2 | Expose vehicle interior fuse and relay module (F152/4). | ||
| AR54.21-P-1254MFA | |||
| Fuse and relay module, component description | GF54.15-P-0001L | ||
| 3.1 | Expose front left footwell ground point (W15/5). | Model 118.### 1# as of model year 2023 https://xentry.mercedes-benz.com/home/ |
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| 3.2 | Expose front right footwell ground point (W15/7). | Model 118.### 2# as of model year 2023 https://xentry.mercedes-benz.com/home/ |
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| Install | |||
| 4 | Retrofit alcohol breathalyzer. | For wiring diagrams, see Dynamic Wiring Diagram (DWD). https://xentry.mercedes-benz.com/home/ Front left footwell ground point (W15/5) or front right footwell ground point (W15/7) with line connector A 002 546 74 40 to existing line on vehicle interior fuse and relay module (F152/4) in retainer F130 with contact A 013 545 75 26 and 5 A fuse and on signal acquisition and actuation module (N10) in plug RB2, pin 6 with line connector A 002 546 74 40 to existing line. |
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| 5 | Install remaining parts. | ||
| Update Vehicle Documentation (VeDoc) | |||
| 6 | Attach "Alcohol breathalyzer retrofitted as per AZ54.21-P-0011MFA" note under field organization texts for DG 54. | ||
| Initial startup | |||
| 7 | Connect diagnostic system. | ||
| AD00.00-P-2000-06MFA | |||
| 8 | Activate alcohol breathalyzer. | Adaptation → Configuration → Manual setting |
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| 9 | Disconnect diagnostic system. | ||
| AD00.00-P-2000-06MFA | |||
| 10 | Carry out operational check. |