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Home >> Mercedes Benz >> 2008 >> GL450 4WD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Charging, Control Panel/Cluster, Data Bus, Fuses/ Relays, PARKTRONIC, Sensors & Switches - 164 Chassis >> Basic Knowledge >> Relay assignment of the load compartment fuse and relay box - GF54.15-P-1257-08GZ

Relay assignment of the load compartment fuse and relay box - GF54.15-P-1257-08GZ

Relay assignment before production period 31.05.2006 

The load compartment fuse and relay box is installed in the load compartment on the right of the wheelhouse.

Fig 1: Identifying Load Compartment Fuse And Relay Box - Relay Assignment Before Production Period 31.05.2006
G05258994Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Relay assignment as of production period 01.06.2006 

Fig 2: Identifying Load Compartment Fuse And Relay Box - Relay Assignment As Of Production Period 01.06.2006
G05258995Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The load compartment fuse and relay box is installed in the load compartment on the right of the wheelhouse.

Relays Designation
K Before production period 31.05.2006 
  • Terminal 15R power outlet relay, with power-down

As of production period 01.06.2006 
  • Circuit 15R seat adjustment
L Valid for code 550 Trailer hitch: 
Terminal 30X
M Heated rear window relay
N Circuit 15 relay / terminal 87FW
O Fuel pump relay
P Rear wiper relay
R Circuit R relay 115R
S -
T As of production period 01.06.2006 
  • Circuit 30, socket for 2nd seat row and load compartment
U As of production period 01.06.2006 
  • Circuit 30, trailer
V As of production period 01.06.2006 
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