I want to change the relays on my '94 VW Passat, but have no idea which relay does what or where they go. I am missing the Fuse Box cover, which normally has the Relay Diagram printed on it. Can you h

Arturo, Passat fuse/relay locations and alarm schematic. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Volkswagen Passat B5 FL 2000 2005 fuse box diagram Auto Genius
VW Passat B5 Guides
http://forums.vwvortex.com/showthread.php?3751731-Fuse-box-in-engine-compartment
Best images of 2003 VW Passat Relay Diagram
2002 passat alarm wiring schematic Google Search

Sorry VW doesn't allow file sharing of the owners manuals, so we can't assist with this.

On this website, you find fuse box diagram and description for Volkswagen Passat 2005

http://www.autogenius.info/volkswagen-passat-b6-fuse-box-diagram

Volkswagen Passat B5 FL 2000 2005 fuse box diagram Auto Genius

For 1998 VW Passat V6 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
The cigarette lighter fuse for 1998 VW Passat V6 is placed in the fuse box / relay plate fascia 1, (driver's door open). See pictures below:



The fuse box / relay plate fascia 1 diagram:


Fuse no.# 33 - F33 (15 Amp.) = Cigarette lighter


Please do rate my response. Thanks!

You can get fuse box diagram for VW passat b5 here https://auto-fuses.com/volkswagen-passat-b5-fuses-and-relay/

Hi!!
The Fuse Box on the passenger compartment is located on the driver' side end of the Instrument Panel. To remove the cover just insert a flat screwdriver or similar tool to pop the cover. See the following pictures.

there is a 10 amp fuse and a relay, probably both in the engine compartment relay box.

VW never had their fuse boxes and relay panel at the passenger side. It's always where the instrument cluster is located. This would always be the case, doesn't matter if you live in a country with right hand drive or left hand drive, it is always situated where the instrument cluster is located. The reason is because all information that's vital to your vehicles operation is monitored through it's instrument cluster through warning lights (idiot lights). VWs designed it with this in mind "electric current diminishes the farther it has to travel from it's electrical source". Pry off the driver side cover if not mistaken.

Check in the black power box under the hood. Pull cover off and there is a diagram explaining what is what. Check the ignition fuse and fuel pump relay.

relay 1 engine compartment
fascia 2 relay 18 (if it is diesel) relay 10 (diesel again) and this could likely be the best candidate relay 4 fuel pump relay/glow plug relay

Now for the fuse box locations ... looking from the front of the car... the engine compartment fuse box is on the left side up near the firewall.
fascia two is the lowest of the two fuse panels on the drivers side under the dash to the right of the steering column (left if it was a right hand drive).

This took about 15 minutes to locate all the possible fuses, be that as it may if i missed it don't hesitate to ask me again.

Robert

Please take a moment to rate this solution thanks