Lighting - Headlamp Condensation Diagnosis

Disclaimer 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 630408 Date: 091101

Lighting - Headlamp Condensation Diagnosis

SI B 63 04 08

Lights

November 2009

Technical Service

This Service Information bulletin supersedes SI B63 04 08 dated June 2008.

[NEW] designates changes to this revision

SUBJECT

Headlamp Moisture: Fault Diagnostics

MODEL

[NEW] All models

SITUATION

There is water or condensation in one or both headlamps.

[NEW] INFORMATION

Under some environmental conditions, condensation can occur without there being a faulty headlamp. A comprehensive test plan that will allow an

accurate diagnosis and repair is available. Follow the relevant test plan in diagnostics, using the latest ISTA diagnosis version. Select "Information

search" and the test plan may be accessed in two ways:

1. Using the "Text search" tab, select "Search for document title" and search using the term "Headlight fogging".

2. Using the "Function structure" tab, select "Body Mechanism, noises, optical element; leaks Water ingress Headlight fogged on inside Start

search ".

Note that a Diagnosis Code will be produced at the end of the test module. Be sure to include the code in the "Comments" section of the warranty