Location of fuses and relays on Mercedes Benz E Class All Models,  years 2003 to 2008.

If you replace any fuses, make sure to replace it with the same color fuse. If there is an underlying problem you could overload the wires or even cause more serious problems to that circuit if you use a higher ampere fuse. Make sure the new fuse you are installing has the same color and ampere rating as the old one. If you install a new fuse at it blows shortly after you install it then you could have a short or a problem with that circuit and you need to get it diagnosed. When you replace fuses make sure your ignition is off.

You can get a lot of fusees for cheap on Amazon, like these ones here. Make sure to replace the fusees with the correct color and ampere rating.

FUSE COLOR = AMPERE RATING

Fuse Color	Ampere
Black	1
Beige	5
Brown	7.5
Red	10
Blue	15
Yellow	20
White	25
Green	30
Amber	40
Red	50
Blue	60

Fuses &  Relays

FUSES AND RELAY IN TRUNK
F001	30 A	Driver Seat Power
F002	30A	Passenger Seat Power
F003	7.5A	Navigation
F003	7.5a	Parktronic
F003	7.5A	Tire Pressure Control
F003	7.5A	TV
F004	20A	Fuel Pump
F005	20A	–
F006	40a	Audio GateWay
F007	15A	Emergency Light T model
F008	7.5	Antenna Module
F009	25A	Roof Unit
F010	40A	Window Defroster Rear
F011	20A	Tailgate Control Unit
F012	15A	Plug Socket Trunk
F013	15A	Plug socket Rear
F013	15a	Pneumatic Adjustable seat
F014	5a	–
F015	10A	Fuel Tank Locking
F016	20A	Heated Seats Rear
F017	20A	Trailer Power Supply
F018	20a	Trailer Control Unit
F019	20a	Electronic control unit for additional rear light
F019	20A	Pneumatic Adjustable Seat
F020	7.5A	Window Shade Rear
F020	30A	3rd Stop Light
Relay	kA	Fuel Pmp
Relay	kB	Relay 2 Circuit 15R
Relay	kC	Reserve 2
Relay	kD	Rear Wiper
Relay	kE	Rear Window Defroster
Relay	kF	Relay Ciruit 15R
Relay	kG	Fuel Filler Cap Polarity Change 1 Relay
Relay	kH	Fuel Filler Cap Polarity Change 2 Relay
FUSES INSIDE, ON THE SIDE OF THE DASH
F021	30A	Door Control Unit Rear Right
F022	30A	Door Control Unit Passenger
F023	30A	Passenger Set Adjustable Memory
F024	25A	Keyless Go
F025	20A	Additional Heating with/without remote start
F026	7.5A	CD Changer
F027	Reserve	–
F028	5/15A	Radio
F029	7.5A	Steering Column Module
F029	7.5A	Steering Column Module
F030	7.5A	Diagnostic Socket
F031	5A	Switch Off Relay
F031	5A	Top switch panel
F032	30A	Door control unit rear left
F033	30A	Door control unit driver
F034	30A	Driver seat adjustable/memory
F035	5A	Weight sensoring system
F036	25A	Heated seats front
F037	5/15A	Conrol unit Height Adjustment
F037	5/15A	Airmatic
F038	–	Reserve
F039	5A	Bottom Switch Panel
F040	10A	Steering wheel heating
F041	5A	Central Gateway
F042	7.5A	Engine Control Module
F042	7.5A	Fuse and Relay Box Driver
Fuses & Relays in the Engine Bay
F43	15A	–
F44	15A	–
F45	7.5A	–
F46	7.5A	–
F47	5A	ESP,SPS,PML &BAS control unit N47-5
F48	7.5A	Restraint Systems Control Unit N2/7
F49	7.5A	–
F50	5A	–
F51	5A	–
F52	7.5/10A	Rotary light swich S1, Cluster, Glove Compartment
F53a	15A	Fanfare horn relay N10/1kO
F53b	15A	a side always powered b side no power with ignition off
F54a	15A	Cigarete Lighter
F54b	15A	a side no power with ign. Off b side always powered.
F55	7.5A	–
F56	40A	Wiper Motor
F57	25A	–
F58	15A	Ignition Coils
F59	15A /20A	Starter Relay
F60	10A	Oil cooler fan
F61	40A	Electric air pump
F62	30A/20A	SEQ Pump Control relay N10/1kM
F63	15A	Circuit 87 relay, engine N10/1kl
F64	7.5A	Rotary light switch, more
F65	20A	EIS EZA Unit N73 Steering lock unit N26/5
F66	7.5A	Right/left front lamp unit E2, E1
Relay	kI	Circuit 87 relays, engine
Relay	kJ	–
Relay	kK	Circuit 87 relays chasis.
Relay	kL	Starter Relay
Relay	kM	SEQ ASG Pump Control Relay
Relay	kN	Circuit 15 relay
Relay	kO	FAN Relay Module
Relay	kP	Cirucit 15R relay
Relay	kQ	–
Relay	kR	Air pump or oil cooler fan relay
Relay	kS	AirMatic Relay K67
Relay	kT	Cutoff relay to interruptible loads K75
Front Pre Fuse Power Distribution
F70	150A	–
F71	150A	M4/7 Electric suction fan with integrated control
F72	50A	A7/3 Traction system hydraulic unit
F73	40A	A7/3 Traction system hydraulic unit
F74	40A	K67 Airmatic Relay
F75	40A	N10/11 Passenger SAM P
F76	40A	N22 Air Conditioning Control Module
F77	–	Reserved
Rear Pre Fuse Block in Trunk in front of main large battery A211545401
F78	200A	N10/1 Driver SAM D
F79	200A	N10/2 Rear SAM-R
F80	150A	N10/1 Driver SAM D
F82	150A	N3/10 Control Module
F83	10A	Reserved
F84	5A	N82 Battery Control Modle
F85	5A	N112 Communcation Platform and A35/11 VCS
F86	5A	x58/1 Interior Socket
F87	40A	M40/1 Fneumatic Pump of Dynamic Seat Control
F88	30A	N121 Trunk Closer Module