
The SAM front block on the Mercedes S (W221) contains the following relays and fuses:

Rely A-air pump. B-compressed-air compressor. C-terminals of 87.D-terminals of 15 .E-electric circuits 87F-terminals-sound signal. K-heating the caretater.
- Air pump.
- To the compressed-air suspension compressor.
- C-terminal 87.
- D-terminals 15.
- E-chain of terminals 87
- F-Sound signals.
- G-terminals 15R.
- No, no, no, no, no, no, no, no, no.
- J-circuit 15, starter.
- K-heating the caretater.
fuse
- 20 is the engine control unit.
- 21, 22, 23, 24-cable plum 87.
- 25 is a combination of instruments.
- 26-Front headlamp.
- 27 is the front right headlamp.
- 28-VGS control unit.
- 29 is the rear SAM unit.
- 30 is the engine control unit, fuel pump.
- 31, 32, 33, 34-reserve.
- Parking brake module 35
- 36-Diagnostic connector.
- 37-EZS clause.
- 38-central interface block.
- 39 is a combination of instruments.
- 40 is the top control panel.
- 41 is the second engine of the yard.
- 42 is the engine's main engine.
- 43-front cigarette lighter.
- 44, 45-reserve.
- 46-body-level control unit.
- 47, 48 is the front block of SAM.
- 49-unit of the steering column.
- 50 is the KLA.
- 51 display of the Commands system.
- 52 sounds.
- 53-servo drive ACPR.
- 54-air recycling system.
- 55-electric air pump.
- 56 is the AIRMatic module.
- 57-heating the caretater.
- 60-reserve.
- 61-passive safety systems.
- 62-night vision system.
- 63-reserve.
- 64 is the active head restraint.
- 65-reserve.
- 66-DTR module.