[John Sabato]

I am attempting to change the radio in my 2006 SLK 280.

The old aftermarket radio was working when I took it out. But I have no power now to either the old or new radio in the ISO connector. I am looking for the radio fuse.

Here is the OEM fuse box diagram alongside what I see in my fuse box (on the right). The fuse list says it is fuse #26. But there is no fuse in that position (identified with the red arrow).

There is a different type of device in that location. So which is the right fuse for the radio in my car?

You assistance would be greatly appreciated. -John

 

[efair]

what is the "different type of device"?

 

[Avel Du]

There are two fuse location diagrams in this thread that may confirm, or offer a different position

ELECTRICAL Interior/Exterior/Misc (Fuses & Relays)

ELECTRICAL See also: Mercedes Benz Workshop Manuals R171 Courtesy NMBruce Component Locations on Mercedes-Benz SLK-Class (R171). LIGHTING - Interior & Exterior. MB Do it Yourself repairs. R171 2005-2008 Mercedes-Benz SLK gear shift override How to Jump Start Mercedes SLK SLK200 SLK280...

www.slkworld.com

Hard to tell from pic but is that not one of the female connectors (that fuse sits in) pulled out?

 

[John Sabato]

It is the device you see in front of the red arrow. It is situated sort of in the center of where fuse 26 would go, and the same type of devices are also in slot 40 and 41 (top left corner of the photo) and fuse 41 is also listed as a radio fuse. They are both missing?

 

[Avel Du]

I see what you mean now. The other two are easier to see (on phone).

I don’t recall seeing anything like that on either of our 171s.
Do they only insert in one female and the other is free?

 

[Avel Du]

@Sneaky Pete @Dave2302 @Delucas @frogfoot

 

[John Sabato]

I see what you mean now. The other two are easier to see (on phone).

I don’t recall seeing anything like that on either of our 171s.
Do they only insert in one female and the other is free?

Yes, it appears so.

 

[Avel Du]

The chaps I have alerted may know.
They see more than most.

 

[John Sabato]

The chaps I have alerted may know.
They see more than most.

Thanks... I will be watching for replies.

 

[Windinmyhair]

Something like this maybe?
https://www.smart-stuff.parts/black-fuse-holder
Goes into any spare spaces along the particular fuse block as an alternative to piggy backing an existing fuse with an 'add a fuse' device.

 

[John Sabato]

They look a lot alike, but not quite. That is obviously a fuse holder that gives you access to provide power to an Aftermarket device.

These two pictures show one of the fuse holders removed from the fuse block. This is what’s missing in the 40 and 41and 26 fuse positions. How the radio that I removed was getting its power is a mystery without these fuses. That’s gonna take some more investigating. While I was waiting for responses, I did discover the fuse 47 was blown. I just replaced it so it’s back to the drawing board tracing the wiring. Thanks to everyone for your responses.

 

[Avel Du]

Pete is good at hunting such things.
Might just need to wait for him to drop by.

 

[John Sabato]

Stop the presses! After replacing the blown fuse, On a whim I plugged the ISO connector on the back of the radio and push the power button and it worked! So far I’ve been able to enable Wi-Fi, and radio, and connected my phone by Bluetooth. I’ll report back when I’ve had more progress. Thanks everyone for your assistance, but it looks like it was just a blown fuse.

 

[jbanks15]

Great! let us know so we can mark your thread 'resolved'

 

[John Sabato]

Will do. Working on USB ports, Apps and GPS functions next. Will give a report with photos when I am done. Radio sounds pretty good!