Before we begin please heed the following warning:
This installation requires modifying the mounting bracket that connects to the driver seat’s lap belt anchoring point. A small amount of material must be removed in order for the anchoring bolt to fit. This is not approved by Schroth. Modify at your own risk.
The first thing you need to do is slightly enlarge the hole through which the driver seat lap belt anchoring bolt will pass through. The bolt is 14mm. I accomplished this using a small Makita drill, a 9/16” drill bit, a C clamp and a table. Nothing too fancy. Clamp the harness down, drill through, and use a dremel or file to clean up the edges/inside.
Before:
View attachment 209939
Drill:
View attachment 209941
After:
View attachment 209940
NOTE: you only need to modify the harness bracket for the driver’s lap belt connection, the hole for the rear connection is large enough. I did both because I did not check the rear before seeing the front bolt was too large, however the rear bolt is slightly smaller and should fit through without issue.
Once that is done you are ready to install. Lift up the rear bench seats by pulling straight up from the center of each driver and passenger side seat. I used a tool case to hold the bench up, however alternatively you can remove the rear seats entirely. In retrospect it is probably easier to remove the entire seat.
View attachment 209945
First, pop out the small plastic screw holding the plastic trim piece in place. It pops up with a flathead screwdriver. Careful as it may go flying. Next, pull up on the black plastic trim alongside the rear and front door sill. It should pop out fairly easily. It is all one continuous piece the extends from front to rear. Lift this up and out of the way, however be careful not to overextend the white wiring strip connected to the harness that runs along the door sill. I lifted the trim piece up and rested it on the drivers headrest. (In pic below screw and trim piece is already removed, just showing location).
View attachment 209942View attachment 209943View attachment 209944
Next, start by removing the bolt that anchors the drivers lap belt to the car. It is an M10 triple square.
View attachment 209949
Part 2 next..