W211 Wagon - Incorrect GPS location
Thread Starter
Junior Member
Joined: Jun 2025
Posts: 22
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W211 E500 4Matic
W211 Wagon - Incorrect GPS location
Hi guys,
I've been trying to solve an issue where the GPS in my Command is showing an incorrect location by a lot. So far I've replaced the FAKRA antenna in the left side of the trunk, connecting to the navigation unit, but with no success. I've seen other posts where people are cleaning/replacing the antenna splitter, but I can't find that splitter for the life of me. I've looked behind the left liner in the boot, took off the D-Pillar liner, but I just can't see the damn thing.
Has anyone else had this issue?
I don't use the Sat Nav at all, but I find this VERY annoying though.
2004 W211 E500 Wagon
Thanks!
I've been trying to solve an issue where the GPS in my Command is showing an incorrect location by a lot. So far I've replaced the FAKRA antenna in the left side of the trunk, connecting to the navigation unit, but with no success. I've seen other posts where people are cleaning/replacing the antenna splitter, but I can't find that splitter for the life of me. I've looked behind the left liner in the boot, took off the D-Pillar liner, but I just can't see the damn thing.
Has anyone else had this issue?
I don't use the Sat Nav at all, but I find this VERY annoying though.
2004 W211 E500 Wagon
Thanks!
Last edited by dnikolov-211; Jun 3, 2025 at 03:59 PM. Reason: add more info
MBWorld Fanatic!
Joined: Jan 2014
Posts: 3,967
Likes: 1,315
From: Republic of Texas
'99 and '05 E55 AMG
@dnikolov-211
https://mbworld.org/forums/w211-amg/...intenance.html
Go here to download the WIS for your vehicle.
https://charm.li/Mercedes%20Benz/2004/
Be advised the zipped file can be large (>1.2GB) so you may need to use an aftermarket downloader (my version of Win11 would only download a max file size of 1.0GB).
In the sedan, located in trunk, left-hand side, hidden behind hinge and high up the side. Not easy to reach but can be done.
In the wagon should be a similar location. The WIS file will provide you the location of the splitter for the wagon.
https://mbworld.org/forums/w211-amg/...intenance.html
Go here to download the WIS for your vehicle.
https://charm.li/Mercedes%20Benz/2004/
Be advised the zipped file can be large (>1.2GB) so you may need to use an aftermarket downloader (my version of Win11 would only download a max file size of 1.0GB).
In the sedan, located in trunk, left-hand side, hidden behind hinge and high up the side. Not easy to reach but can be done.
In the wagon should be a similar location. The WIS file will provide you the location of the splitter for the wagon.
Last edited by bbirdwell; Jun 4, 2025 at 07:18 AM.
Thread Starter
Junior Member
Joined: Jun 2025
Posts: 22
Likes: 0
W211 E500 4Matic
@dnikolov-211
https://mbworld.org/forums/w211-amg/...intenance.html
Go here to download the WIS for your vehicle.
https://charm.li/Mercedes%20Benz/2004/
Be advised the zipped file can be large (>1.2GB) so you may need to use an aftermarket downloader (my version of Win11 would only download a max file size of 1.0GB).
In the sedan, located in trunk, left-hand side, hidden behind hinge and high up the side. Not easy to reach but can be done.
In the wagon should be a similar location. The WIS file will provide you the location of the splitter for the wagon.
https://mbworld.org/forums/w211-amg/...intenance.html
Go here to download the WIS for your vehicle.
https://charm.li/Mercedes%20Benz/2004/
Be advised the zipped file can be large (>1.2GB) so you may need to use an aftermarket downloader (my version of Win11 would only download a max file size of 1.0GB).
In the sedan, located in trunk, left-hand side, hidden behind hinge and high up the side. Not easy to reach but can be done.
In the wagon should be a similar location. The WIS file will provide you the location of the splitter for the wagon.
and I couldn't find it.
Ideally I was looking for someone who did the job on a wagon, as it seems all the posts are for a sedan version.
Thanks anyway, I will look again!
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Joined: Sep 2004
Posts: 314
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From: In the shadow of D.C. (No.Va.)
'05 E320CDI, 1987 300E, Vanagon Syncro, Turbo Arrow III
Be aware that that "antenna splitter" shows up in some inventory systems as something obscure like "parasitic stopper." I don't know about the wagon, but on the sedan, there's a drainage issue that causes water to land directly on the component and they corrode and fail. If you have never replaced the splitter, you might want to assume it is bad.
Most recently, since I am not actively using the mobile phone antenna (because MB never shipped a bluetooth interface with the SIM Access profile in America, but don't get me started), I got a compatible active GPS antenna, tossed it under the rear tray at the window and connected directly to the GPS antenna lead from the splitter. That worked fine.
Most recently, since I am not actively using the mobile phone antenna (because MB never shipped a bluetooth interface with the SIM Access profile in America, but don't get me started), I got a compatible active GPS antenna, tossed it under the rear tray at the window and connected directly to the GPS antenna lead from the splitter. That worked fine.
Last edited by pa28pilot; Jul 2, 2025 at 08:04 PM. Reason: Added "in America"
Thread Starter
Junior Member
Joined: Jun 2025
Posts: 22
Likes: 0
W211 E500 4Matic
Be aware that that "antenna splitter" shows up in some inventory systems as something obscure like "parasitic stopper." I don't know about the wagon, but on the sedan, there's a drainage issue that causes water to land directly on the component and they corrode and fail. If you have never replaced the splitter, you might want to assume it is bad.
Most recently, since I am not actively using the mobile phone antenna (because MB never shipped a bluetooth interface with the SIM Access profile in America, but don't get me started), I got a compatible active GPS antenna, tossed it under the rear tray at the window and connected directly to the GPS antenna lead from the splitter. That worked fine.
Most recently, since I am not actively using the mobile phone antenna (because MB never shipped a bluetooth interface with the SIM Access profile in America, but don't get me started), I got a compatible active GPS antenna, tossed it under the rear tray at the window and connected directly to the GPS antenna lead from the splitter. That worked fine.
