SL R230 Fuse Box Locations
- in the engine bay on the driver’s side
- in the engine bay on the passenger’s side
- in the passenger compartment
- fuses box in the rear trunk
Fuse Types Used on Mercedes-Benz
The ATO and MAXI fuses are installed on the fuse box panels. If you want to save on these fuses, you can purchase a box with 100+ fuses on Amazon for only a few dollars.
Fuse Guide Applications
|Model:||SL350 SL500 SL55 AMG SL600 SL65 AMG SL550 SL55 AMG|
|Years:||2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012|
Interior Fuse Box – Passenger Compartment.
You will find a fuse box in the passenger compartment behind the passenger seat. This is where the rear SAM Control Unit N10/8 is located as well. In this location, you will find fuses 50 through 77. Here you will also find relays Q through U.
To access these fuses and relays, open the passenger-side storage compartment. At the bottom of the storage compartment, you will see two clips towards the back. Press the clips and lift the storage compartment floor.
Fuses Passenger Compartment
Download Fuse assignment of rear fuse and relay box R 230 SL-Class (Source:Justanswer.com)
|Fuse||Purpose, Designation, Allocation||Ampere|
|51||Air Cooler Pump||7.5|
|53||Rear Glass Heater||30|
|54||AGW Audio Gateway, Amplifier||20|
|55||Stationary Heater Receiver||5|
|62||Control Unit N52||25|
|63||Control Unit N52||5|
|64||Voice Control (VCS)||5|
|67||Parktronic Control Unit||5|
|69,70||TPMS Tire Pressure Monitor||25|
|74||Control Unit N52||5|
|76||Tele Aid, Emergency Call||7.5|
|77||COMAND, Radio, CD Player, CD Changer||20|
Relays in Passenger Compartment, Behind Passenger’s Seat
|R||Air Cooler Pump|
|U||Heater rear window|
Fuses and Relays, Engine Bay – Driver Side
There are two fuse boxes in the engine bay. One is on the driver’s side, beside the brake fluid reservoir. The fuses and relays here are covered with a black plastic cover. Move the locking tab to the unlock position and remove the plastic cover.
Here, you will find fuses allocated numbers 1 through 27 and relays A through J.
Engine Bay – Driver Side Fuse and Relays
|Fuse||Designation, Purpose, Function||Ampere|
|3||Steering Column In / Out||15|
|4||Steering Column Up / Down||15|
|6||SRS Airbag Restraint System||7.5|
|9||Door control unit DCU||40|
|12||SRS Restraint Airbag||7.5|
|13||Active Body Control ABC||15|
|14||Windshield washer motor||7.5|
|17||Seat Belt Latch Sensor||5|
|21||Dashboard, Instrument cluster||5|
|23||Coolant Motor for AC, Controls||10|
|24||Brake Light switch, Stop Lamp||5|
|26||Control Panel, Lower unit||5|
|27||Seat adjustment, Left||30|
Relays, Engine Bay – Driver Side
|E||Steering Column Adjustment|
|H||Wiper On Off|
|I||Steering Column Adjust|
|J||Steering column adjust|
Fuse and Relays – Engine Bay – Passenger Side
A second fuse box, SAM N10/11, is located on the passenger side of the engine bay. Here, you will find fuses 28 to 49 and relays K through P.
|29||ECU, Engine Control Unit||20|
|34||SBC Unit, Hydraulic Brakes, Sensors||5|
|35||Oil Cooling Fan AMG||30|
|36||ESP and BAS||5|
|37||Transmission Control Unit||7.5|
|38||Overhead Control Panel||7.5|
|39||Steering Wheel Heater||15|
|41||Door Control Unit||40|
|42||Seat Adjustment Control Unit||30|
|43||Engine Control Unit, Multiple fuse, and relays||20|
|44||Oxygen Sensor, O2, Supercharger, Air pump, AACDivert Air Switch||20|
|45||Distronic Control Unit||5|
|46||Active Body Control||5|
Relays, Passenger side of the engine compartment
What fuse type do I need to use?
Your Mercedes-Benz uses Automotive Blade Fuse Type. A box of 100 fuses that include all the different ampere ratings you need costs less than $20 on Amazon.
- When replacing blown fuses, use the same ampere rating fuse. The fuse rating is written on the fuse. You can verify that you are using the correct fuse by ensuring the fuse colors match the blown fuse and the new fuse. This indicates the same ampere rating.
- Make sure to close the fuse box cover properly and lock the tabs. This is very important to avoid any moisture getting inside the fuse box. The fuse box panel has a seal to keep water and moisture out of the box.
Knowing the location of the fuse box in your home or car is important for several reasons:
- Safety: The fuse box contains fuses or circuit breakers that control the electrical power supply to various parts of your home or car. In an electrical overload or short circuit, the fuse or circuit breaker trips, cutting off the power supply to prevent damage or fire. Knowing the location of the fuse box and how to access it quickly can help you prevent accidents or fires.
- Troubleshooting: If you are experiencing an electrical problem in your home or car, knowing where the fuse box is can help you troubleshoot the issue. You can check the fuses or circuit breakers to see if they are tripped or blown and replace them if necessary.
- Maintenance: Regular maintenance of your home or car’s electrical system may require you to access the fuse box to replace old or damaged fuses or circuit breakers. Knowing the location of the fuse box can make this task easier and faster.
Knowing the fuse box’s location is essential to maintaining a safe and functional electrical system in your home or car.
What is the Best Scanner for Diagnosing Tripped Fuses and Broken Relays on a Mercedes-Benz?
The YOUCANIC full-system diagnostic scanner is a smart tool that helps uncover the mysteries of a car’s electronic systems. It’s a go-to for tackling tricky electrical problems, perfect for car experts and enthusiasts. If you’re dealing with a tripped fuse, this scanner quickly spots where things went wrong and helps you get things back on track.
Overall, the YOUCANIC full system diagnostic scanner is invaluable for any Mercedes-Benz owner or technician looking to troubleshoot problems quickly and accurately. With its user-friendly interface and powerful diagnostic capabilities, you can save time, money, and frustration by diagnosing and resolving issues with your Mercedes-Benz quickly and efficiently.