Subject: Modifications on Doors and Hinge Pillars Models: 911/t 1969-89
Bulletin Number: 91 – 02
ATTENTION: Service Manager/Service Technician
Models Affected: All 911 and 911 turbos
Model Years 1969 through 1989
Concern: Standardization of replacement doors and modifications on hinge pillars.
Service Information: A standardized replacement door is all that is available for 911 Series vehicles from the Porsche Parts Department. Some modifications are necessary when installing these doors in 911 and 911 turbo vehicles ’69 through ’89 model years.
Wiring Harness Routing:
The positions for three wiring harness holes are center punch marked on new doors (Figure 1) and must be drilled and deburred as necessary compared to the old door before painting the new door.
1 – For electric window lift (20mm diameter)
2 – For outside mirror adjustment (16.5mm diameter)
3 – For radio speakers (12.5mm diameter)
The hole (arrow in Figure 1) must be closed with grommet Part Number 999.703.066.50.
Service Information (cont.): Door Contact Switch for Inside Light Repositioned
During Model Year 1989, hinge pillars were modified. Hinge pillars remain available in both versions.
When installing the new version door on a car with the old version hinge pillar, the door contact switch for the inside light must be positioned 50mm further down.
This requires drilling a new hole, 8.4mm in diameter, 50mm below the old door contact switch hole (Figure
2). Deburr edges of the new hole and treat edges with rust prevention paint. Relocate switch into new hole. Install plug Part Number 911.531.999.00 in old hole.
Instructions for fitting and welding new door shells, printed in 911 Workshop Manual, Model Years 1965-1971, Volume II, Pages B7 through B13, are still applicable.
Workshop Manual Order Number: WKD 480 520
Parts Information: Door Old New
Right N/A 911.531.006.23
Left N/A 911.531.005.23
Right 911.501.040.02 964.502.040.00
Left 911.501.039.02 964.502.039.00
Additionally, the following parts are needed when converting to the new version door:
Illustration Quantity Description Part Number Remarks
– 1 Plug 911.531.999.00 For old door contact switch hole
1 1 Oval plug 999.703.345.40
2 2 Round plug 999.703.344.40
3 1 Grommet 999.703.066.50
4 1 Rubber valve 999.926.018.40
5 1 Bracket left door 911.531.955.00 Only up to MY 1986
5 1 Bracket right door 911.531.956. 00 Only up to MY 1986
6 2 Nut 999.591.498.40 Only up to MY 1986
7 2 Washer N 011.524.7 Only up to MY 1986
8 2 Bolt M6x12
N 010.212.14 Only up to MY 1986
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