Newbie Niggles
10-24-2011, 05:00 PM
#17
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A TSB has been issued for the headlight problem. One potential issue is that the bracket that holds the headlight assembly can become loose, and so the connection to the light moves when you go over bumps, around curves, etc. I believe the TSB includes re-securing the bracket and using LocTite on the bolts that hold it in place so that they won't loosen again. I had this fix done to my Cayenne a few years ago, and I haven't had the issue since then.
Technical Information Cayenne (9PA) 9
25/04 EN 9414
Sep 30, 2004
Main headlight shaking while driving
Model year: as of 2003
Vehicle Type: Cayenne/Cayenne S/Cayenne Turbo
Concerns: Main headlight mount.
Situation: Main headlight shaking while driving.
Action Required: In the event of a complaint, the front fastening screws of both main
headlight mounts must be secured with screw locking agent.
Part Nos.: 955.631.052.00
Fastening screw for new main headlight mount (only if necessary)
N 910.427.01
Fastening screw for old main headlight mount (only if necessary)
Tools: Torque wrench 0-30 Nm (0 - 22 ftlb.)
Procedure: Securing front fastening screws for the main headlight mount with screw locking agent.1 Remove both wheel housing liners according to → 505619 Removing and installing front wheel housing liner.
2 Remove front apron according to → 631519 Removing and installing front apron.
3 Remove main headlight according to → 941519 Removing and installing main headlight.
Information
There were two different main headlight mounts used, which must be tightened using the prescribed fastening screws:
old main headlight mount with Part Nos. 955.631.041.00/955.631.042.00
new main headlight mount with Part Nos. 955.631.041.01/955.631.042.01/955.631.041.02/955.631.042.02
4 Unscrew fastening screw 1 ( -Item 1- ) on the main headlight mount, wet with medium-tight screw locking agent (Loctite) and tighten to the prescribed tightening torque.
Figure 1
→ Tightening torque: 7 Nm (5 ftlb.)
5 Unscrew fastening screw 2 ( -Item 2- ) on the main headlight mount, wet with medium-tight screw locking agent (Loctite) and tighten to the prescribed tightening torque.
6 Install and set both main headlights according to → 941519 Removing and installing main headlight.
7 Install front apron according to → 631519 Removing and installing front apron.
8 Install wheel housing liner according to → 505619 Removing and installing front wheel housing liner.
9 Ignition "On".
10 Carry out a function check on the headlights.
11 Ignition "Off".
Working Time: 94 14 14 00:
Securing main headlight mount
160 TU
This includes:
Removing and installing wheel-housing liner,
removing and installing front apron,
removing and installing main headlight,
adjusting main headlight.
References:
→ 505619 Removing and installing front wheel housing liner → 631519 Removing and installing front apron → 941419 Removing and installing headlight mount → 941419 Removing and installing headlight mount→ 941519 Removing and installing main headlight → Chapter "Practical Information, Breakdown Service" → Headlights
