Mercedes-Benz 211 fuse and relay

Mercedes-Benz 211 body represents the 3rd generation of E-class cars which were produced in 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 with both petrol and diesel engines (E200, E220, E230, E240, E270, E280, E300, E320, E350, E400, E420, E500, E55 & E63 AMG) and w211 sedan and S211 station wagon. During this time, the model has been restyled. In this material, we will show the locations of all electronic control units, a description of the fuses and relays of the Mercedes 211 with box diagrams and photo examples of their execution. Select the fuse responsible for the cigarette lighter.

Mercedes 211

The location of the blocks and the purpose of the elements in them may differ from those shown and depend on the year of manufacture and the level of electrical equipment of your car.

Location

Layout

Layout 211

Assignment

1ABS electronic control unit —> 31/05/06
2ABS electronic control unit – 01/06/06^
3Antenna booster – audio/navigation system
4Antenna booster 1 (TV tuner) – rear window
5Antenna booster 2 (TV tuner) – C-pillar left (sedan) – tailgate left pillar (station wagon)
6Antenna Amplifier 3 (TV Tuner) – RH C-pillar (Saloon) – RH C-pillar (Station Wagon)
7Impact sensor, left – behind the headlight
8Impact sensor, right – behind the headlight
9Side Impact Sensor Assembly LH – B Pillar
10Side impact sensor assembly, right – B-pillar
11Anti-theft control unit – LH side luggage compartment (integrated with multifunction control unit 2)
12Anti-theft horn – Behind wheel arch trim
13Sunlight sensor – top center windshield
14Additional battery -> 31/05/06 if available
15Additional battery -> 31/05/06 if available
16Additional heater control unit
17Auxiliary Heater Remote Control Receiver – Luggage Compartment Right Side
18Battery – under the floor of the luggage compartment
19Battery control unit – luggage compartment, under floor
20Trunk lid opening/closing drive control unit
21CAN data bus, gateway control unit
22Diagnostic connector (DLC)
23Left front door electrical control unit
24Left rear door electrical control unit
25Right front door electrical control unit
26Right rear door electrical control unit
27Electronic Engine Control Unit – Diesel/112/113
28Electronic Engine Control Unit – 271
29Electronic Engine Control Unit – 272/273
30Fuse/Relay Box, Engine Compartment
31Fuse box/relay dashboard
32Fuse/Relay Box, Footwell
33Fuse/Relay Box, Luggage Compartment
34Fuse box/relay spare wheel well
35Headlight control unit, left (models with xenon headlights)
36Headlight control unit, right (models with xenon headlights)
37Headlight range control unit – under the right front seat, under the carpet (models with xenon headlights)
38Horn 1 – Behind the grille
39Horn 2 – behind the front bumper
40Ignition lock control unit
41Electronic immobilizer control unit (combined with ignition lock control unit)
42Keyless entry system control unit – behind the ashtray
43Lighting control unit – behind the headlight switch
44Luggage compartment loading control unit (station wagon) – for hollow luggage compartments
45Multifunction Control Module 1 – Attached to Engine Compartment Fuse/Relay Box – Functions: A/C Pressure Control, Brake Fluid Level, Coolant Level, Front Lights, Headlight Washers, Horns, Interior Lamps, Outside Temperature, Windshield Wipers
46Multi-Function Control Unit 2-connected to Fuse/Relay Box, Luggage Compartment – Functions: Anti-theft system, tailgate/trunk lid release, central locking, fuel level, fuel pump, alarm, rear window defogger, direction indicators, rear lighting
47Multifunction control unit 3 – in the multifunction switch control unit (overhead console) – functions: Volume change sensors (anti-theft system), sunlight sensor, interior lamps, rain sensor
48Multi-functional control unit 4-in the multi-function switch control unit (dashboard) – functions: air conditioning control unit, central locking, alarm, rear window wiper
49Multi-function control unit 5-in multi-function switch control unit (center console) – functions: Auxiliary heater switch, parking system, active suspension system, tailgate/trunk lid switch
50Multifunctional Control Unit 6 – Footwell, Under Floor Mat – Functions: Coolant Pump Motor, Fog Lights, Seat Heaters, Reversing Lights, Gear Selector
51Multifunctional control unit 7 – in the rear interior lamp (with a transparent roof) – functions: Interior lamps
52Navigation system control unit
53Ambient temperature sensor
54Parking system control unit – luggage compartment left side
55Rain sensor – upper center windshield
56Power seat control unit, front left – under the seat
57Power seat control unit, front right – under the seat
58Head restraint relay (01/06/05^)
59Solar battery control unit – behind the instrument cluster
60Steering column electrical control unit – behind the steering wheel
61Steering column lock control unit – built into the ignition lock control unit
62Steering wheel position sensor – in the control unit for electrical equipment of the steering column
63Heated steering wheel control unit – near instrument cluster (^05/05)
64Power sunroof control unit -in multifunction switch control unit (overhead console)
65Electronic SRS control unit
66Active suspension control unit – legroom, under floor mat
67Rear Door Open/Close Control Module – LH Side of Luggage Compartment
68phone antenna
69Telephone interface control unit – under the panel, in the rear of the luggage compartment
70Trailer Electrical Control Module – LH Luggage Compartment
71Electronic Transmission Control Unit (Sequential Manual Transmission) – Footwell, Under Floor Mat
72Electronic Transmission Control Module – Footwell, Under Floor Mat
73Tire pressure monitoring control unit – luggage compartment left side
74Voice activation system unit – under the panel, in the rear of the luggage compartment
75Lateral movement sensor

Engine compartment

Under the hood, the main fuse and relay box is located on the left side, next to the rack and is closed with a protective cover.

Photo fuse box under the hood Mercedes 211

Diagram

Diagram

Designation

4315A ME control unit (engines 112, 113, 156, 271, 272, 273)
CDI system control unit (engines 628, 629, 642, 646, 647, 648)
SAM control unit with rear relay and fuse box (engines 629, 642, 646, 647, 648)
SAM control unit with relay and fuse module on the driver’s side (engines 629, 642)
4415A CDI system control unit (engines 646, 647, 648)
ME control unit (engines 271, 272, 273)
Gas supply valve cyl. 1 (engine 271 CNG)
Gas supply valve cyl. 2 (engine 271 CNG)
Gas supply valve cyl. 3 (engine 271 CNG)
Gas supply valve cyl. 4 (engine 271 CNG)
457,5A AIRmatic control unit with ADS system
Rear axle body level control unit
Selector lever electronic module control unit (5-speed automatic transmission (NAG))
Selector Lever Position Sensor (Sequentronic Semi-Automatic (ASG))
467.5A EGS control unit (5-speed automatic transmission (NAG))
Semi-automatic gearbox control unit (Sequentronic (ASG))
Electric control module VGS (7-speed automatic transmission)
475A Control unit for ESP, PML and BAS systems
487.5A SRS control unit
Front left reversible seat belt pretensioner (since 2007)
Front right reversible seat belt pretensioner (since 2007)
497.5A SRS control unit
Passenger/Child Seat Recognition Sensor on the Front Passenger Seat
Head restraint relay NECK-PRO
505A Electrical connector mobile phone chain
Power supply disconnect point VICS (Japan)
Emergency call system control unit (since 2007; USA)
515A Not used
527.5A Exterior lighting rotary switch
instrument cluster
Glove box lighting with microswitch
Headlight range control unit (Bi-Xenon headlights)
Suction fan for engine and air conditioner with integrated regulator (since 2007)
53aNot used
53b15A Horn relay
54a15A Cigarette lighter
54b15A Illuminated cigarette lighter
557.5A Telephone (standard telephone “MB”)
Bluetooth module plug connection (standard telephone “MB”)
Electrical connector mobile phone chain
Emergency call system control unit (since 2007; USA)
5640A Wiper motor (M6/1)
5725A CDI system control unit (engines 628, 646, 647, 648)
Suction electric fan for engine and air conditioner with integrated regulator (engines 271, 272, 273)
Me control unit (engines 271, 272, 273)
Regeneration change-over valve (engines 271, 272, 273)
PremAir system sensor (engines 271, 272, 273)
Canister Canister Shutoff Valve (USA)
5815A Engines 112, 113, 156:
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil
Cylinder 4 ignition coil
Cylinder 5 ignition coil
Cylinder 6 ignition coil
Cylinder 7 ignition coil
Cylinder 8 ignition coil
5915/20A Starter relay
6010A Oil cooler fan (E55 AMG, E63 AMG)
6140A Electric air pump
6230A ASG pump control relay (Sequentronic semi-automatic gearbox (ASG))
6315A Semi-automatic gearbox control unit (Sequentronic semi-automatic gearbox (ASG))
Terminal 87 relay, motor (motors 112, 113)
ME control unit (engines 112, 113)
647.5A Exterior lighting rotary switch
instrument cluster
Steering column electronic module (until 2007)
Control panel KLA
6520A EZS control unit
Electric steering lock control unit
667.5A Front right headlight
Front left headlight
LWR dial (since 2007)
Headlight range adjustment module (Bi-Xenon headlights)
675/10A Stop lamp switch
Relay
ITerminal 87 relay, motor
KRelay, electr. circuit terminal 87 undercarriage
LStarter relay
МASG pump control relay (until 2007)
NRelay terminal 15
OHorn relay
PRelay terminal 15R
RAir pump relay (except engine 113.990 (E55 AMG), 156.983 (E63 AMG))
Oil cooler fan relay (engine 113.990 (E55 AMG), 156.983 (E63 AMG))
SAIRMATIC relay (semi-active air suspension)
TIsolating relay for disconnected consumers (until 2007)

Fuse number 54 is responsible for the front cigarette lighter, for the rest of the fuses located in the boxes in the luggage compartment.

Passenger compartment

Fuse box in the dashboard

On the left side of the dashboard, behind a protective cover, there is a fuse box.

Photo – example

photo fuse box 211

Diagram

Diagram 2

Allocation

150A Power supply: Rear power fuse box
2125/30A Rear right door control unit
22Front right door control unit
2330A Seat adjustment control unit with memory function, front passenger
2425A Terminal 30 cable lug, Keyless-Go
2525A Auxiliary heater protected via cable termination:( STH heater)
5A Additional protection via auxiliary heater switch fuse:
Receiving unit for radio remote control of the auxiliary heater STH
267.5A CD changer
275A Terminal 15 relay (since 2007)
285A Audio system
Control panel with COMAND system display (Japan)
15A Audio module and navigation box control panel (Audio 50 APS)
15A Control panel with COMAND system display
2915A Cable lug electr. terminal 30 circuits
15A DC/DC converter control unit (before 2003)
El7.5 Electronic steering column module
7.5A EZS control unit
307.5A Diagnostic connector
315A Upper control box
5A Isolating relay for disconnected consumers (2006)
7.5A SAM control unit with relay and fuse module on the driver’s side (until 2006)
3225/30A Rear control unit a lion. doors
3325/30A Front left door control unit
3430A Driver’s seat adjustment control unit with memory function
355A Passenger weight system (WSS) control unit (since 2007; USA)
3625A Seat heating and ventilation control unit
377,5/15A AIRmatic control unit with ADS system
387,5A Headrest relay NECK-PRO
395A Control box lower control box
405A Upper control box (before 2006)
10A Seat heating and ventilation control unit
415A Central interface control unit
427.5A Isolating relay for disconnected consumers (until 2006)
ME control unit (engines 112, 113)
Terminal 87 relay, motor (motors: 629, 642, 646 EVO)
SAM control unit with relay and fuse module on the driver’s side (engines 271, 272, 628, 629, 642, 646, 647, 648)
CNG control unit (engine 271)

Fuse box under the dashboard

This fuse box is located in the front passenger footwell. To access it is necessary to remove the casing and the protective cover.

photo 211

Diagram

Diagram 3

Appointment

68200A Auxiliary heater (engines 629, 642, 646, 647, 648)
69150A Glow output stage (646, 647, 648 engines)
150A End of glow plug time (engines 629, 642, 646)
70150A Secondary Battery Relay
Engine starting point from an external energy source (since 2007; type 211.2)
71100A Engine and A/C suction fan with integrated regulator (engines 112, 113, 156, 271, 272, 273, 629, 642, 646, 647, 648)
7250A Hydraulic block SBC
7340A Hydraulic block SBC
40A ESP control unit (since 2007)
7440A Relay AIRMATIC
7540A SAM control unit, passenger side
7640A Catalyst purge relay (2003; engines 113.990 (E55 AMG))
40A Front right reversible seat belt pretensioner (PRE-SAFE)
7740A Heating air recirculation unit
Solar generator control unit
Fan electric motor (since 2007)

Luggage compartment

Fuse box behind the trim panel

On the left side in the luggage compartment, behind the trim, there is a box with fuses and relays.

lag comp

Diagram

Diagram lag component

Decoding

130A Switch for partially electric seat adjustment, passenger side
Driver’s seat adjustment control unit with memory function
230A Switch for partially electric seat adjustment, driver’s side
Seat adjustment control unit with memory function, front passenger
37.5A RDK control unit (tire pressure monitoring system)
PTS control unit (parktronic)
TV tuner (analogue / digital)
Navigation processor
415/20A Fuel pump (except 113.990 (E55 AMG), 156.983 (E63 AMG))
7.5/15A Charge air cooler circulation pump (113.990 (E55 AMG))
5Not used
640A Audio interface control unit
Antenna amplifier module, left
Audio system
715A Tailgate control unit
87.5A Antenna amplifier module left
Tilt sensor EDW
Audible alarm
925A Ceiling Control Panel
1040A Heated rear window
1120A Tailgate control unit
1215A Socket in luggage compartment
1315A Socket in saloon
14Not used
1510A El. central locking drive fuel tank cap
1620A Seat heating and ventilation control unit
1720A AAG control unit (drawbar)
1820A AAG control unit (drawbar)
1920A Air pump for multi-contour seat
207.5A Rear window blind relay
Relay
AFuel pump relay (except engine 113.990 (E55 AMG), 156.983 (E63 AMG))
Charge air cooler circulation pump relay (only for engine 113.990 (E55 AMG))
BRelay 2, terminal 15R
CBackup relay 2
DRear Wiper Relay
EHeated rear window relay
FRelay 1, terminal 15R
GGas Cap Relay, Polarity Reversal 1
HGas cap relay, polarity switch 2

Fuse box next to the battery

Another high power fuse box is installed next to the battery.

Photo 4

Diagram

Diagram 4

Assignment

78200A SAM control unit with driver side fuse relay module
79200A SAM control unit with rear relay and fuse box
80150A SAM control unit with driver side fuse relay module
81150A Interior fuse box
82150A Fuse box II, wheel arch rear right (service vehicles)
150A Fuse 82A and 82B (engines 113.990 (E55 AMG), 156.983 (E63 AMG))
82A30A Fuel pump relay (engine 113.990 (E55 AMG))
40A Fuse for the left fuel pump control unit (engine 156.983 (E63 AMG))
40A Fuse for the right fuel pump control unit (engine 156.983 (E63 AMG))
82B40A Catalyst Purge Relay
8330A Multifunctional control unit spec. cars (MSS) (taxi)
845A Battery control unit
battery sensor
855A Phone interface
Hands-free telephone system control unit
Voice control control unit
UHI control unit (universal mobile phone interface)
86Interior socket (5A until 2003, 30A from 2004-2007, 5A from 2007)
5A SDAR control unit (since 2007; USA)
30A Multifunctional control unit spec. Vehicles (MSS) (service vehicles, taxis)
30A GAS control unit (service vehicles)
30A Wire connector, terminal 30/interior (company vehicles)
8740A Air pump for dynamic seat adjustment
8830A HDS control unit (type 211.0)
Tailgate closing control unit (type 211.2)
8940A Luggage compartment floor control unit (type 211.2)
9040A Front left reversible seat belt pretensioner (PRE-SAFE)
Multifunctional control unit spec. cars (MSS) (taxi)
30A Fuel pump relay (up to 2004; engine 113.990 (E55 AMG))
9140A Multifunctional control unit spec. cars (MSS) (taxi)

 

That’s all. And if you have something to add – write in the comments.

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