Removing Pyrotechnical Cutoff Relay

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Working on the vehicle electrical system

Risk of burns
Risk of short circuit or fire.

→ Disconnect the battery.

→ Prevent battery from reconnecting.

→ Cover the battery.

→ Remove ground terminal and cover the terminals.

→ Route electric lines without tensile strength.

→ Secure electric lines to existing lines/components.

Fig 1: Overview Of Cutoff Relay

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Move front left seat back and up as far as possible. Move backrest fully forward.
Disengage front trim panel at the rear -arrow A- , then unclip it by pulling it forward -arrow B- .

Fig 2: Unclipping Trim Panel For Front Seat Frame
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Unclip the right and left carpet cover -arrows- .

Fig 3: Unclipping Carpet Covers
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Unscrew the two fastening screws -1- .

Fig 4: Loosening Seat
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Fold the seat back as far as possible -arrow A- . With the seat in its folded position, move the seat forward again using the fore-and-aft adjustment -arrow B- .
Fold carpeted floor forwards -arrow A- . Unscrew fastening nut -1- from the battery ground strap on the body and remove the ground strap from the stud -arrow B- .

Fig 5: Screwing Off Battery Ground Strap On Body
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided.
Information
- Only for vehicles with auxiliary battery
Release the cover -arrows A- and open it -arrow B- .

Fig 6: Opening Cover And Loosening Line For Additional Battery
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Screw off the fastening nut -arrow 3- and remove the line for the auxiliary battery -arrow C- .
Unclip the power distributor cover using a screwdriver -arrow a- .

Fig 7: Loosening Cover From Power Distributor
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Carefully prise out the locking mechanism on the electric connector -1- with a screwdriver -arrow a- and pull the connector out of the cutoff relay -2- .

Fig 8: Removing Cutoff Relay
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Screw off the two fastening nuts -3- on the cutoff relay -2- and remove the cutoff relay.