fuses and relays

Electrical fuses/relays

There are quite a few fuse and relay panels:

• 2 under the hood,
• one behind the seats
• and more

note that many systems will go offline if there is a problem, and even if the problem is cleared, often you have to reset it by pulling power, or a service tool

https://benzbits.com/R230/Fuses/LeftEngineRelays/Through_MY2008_LeftEngineRelays.pdf

Comprehensive site for fuses and relays:

 https://benzbits.com/R230/Fuses/

Left engine fuses

https://benzbits.com/R230/Fuses/LeftEngineFuses/2003_09_01_Through_2004_05_3_LeftEngineFuses.pdf

 Left engine relays:

https://benzbits.com/R230/Fuses/LeftEngineRelays/Through_MY2008_LeftEngineRelays.pdf

Right engine fuses:

https://benzbits.com/R230/Fuses/RightEngineFuses/2003_09_01_Through_2004_05_31_RightEngineFuses.pdf

https://www.mercedesmedic.com/sl-class-r230-fuse-chart/

mb parts online:

https://mbparts.mbusa.com/v-2003-mercedes-benz-sl500--base--5-0l-v8-gas