Do you know where the indicator relay is on my mercedes 500 sec

Question edited for clarity.
Question moved to model category.

Mercedes are the only manufacturer to have 8 or 10 fuse boxes :>D Don't forget the radio is also connected and monitored by the BCM.

Mercedes-Benz CL-Class & S-Class (C215, W220

Fuse Box Diagrams https://fuse-box.info > mercedes-benz > mercedes-ben...

Here you will find fuse box diagrams of Mercedes-Benz CL500, CL600, CL55, CL63, CL65, S280, S320, S350, S400, S430, S500, S600, S55, S65 (1999, 2000, 2001 ...

Mercedes-Benz E-Class (W211; 2003-2009) fuses ...

Fuse Box Diagrams https://fuse-box.info > mercedes-benz > mercedes-ben...

Here you will find fuse box diagrams of Mercedes-Benz E200, E220, E230, E240, E270, E280, E300, E320, E350, E400, E420, E500, E550, E55, E63 2003, 2004, 2005, ...

Fuse box diagram Mercedes w220 and relay with ...

FuseAndRelay.com https://fuseandrelay.com > mercedes
In our article you will find a description of the fuses and relays Mercedes 220 with box diagrams, photo examples and their locations. We will note the ...

‎Engine compartment · ‎Box on the left side · ‎Box on the right side · ‎Additional box

https://fuse-box.info/mercedes-benz/mercedes-benz-cl-class-s-class-c215-w220-1999-2006-fuses-and-relay

All the models

https://fuse-box.info/mercedes-benz

http://www.mercedesmedic.com/mercedes-benz-cls-2006-2011-fuse-box-location-diagram-assignments/

does your car start in the first place?

try looking on mercedes forum, they offer alot of mercedes info.

The fuel pump and filter is located on the left side of the vehicle, rear, just in front of the left rear wheel. If there is no fuel getting to the CIS system, it is more likely that the pump is in trouble. Pressure is very critical in these systems. Let me know what else you need. I know these cars quite well.

Far as I'm aware the only way to reset it is to take it to a Mercedes Dealer. I have a Mercedes CLK 500 and had to do the same thing when I had a third party service the car.

replace fuse and relay if that doesnt work check fuel pump itself. If your getting fuel to fuel distributor then refurbish it or replace it.

cold start relay either the fuse in the relay, or the relay itself.

I think the hazards and the indicators function on different relays. If the indicator switch is working ok then the relay is probably not working.