Replacing cornering light bulbs L148/L149 — VW

Replacing cornering light bulbs L148/L149 on VW: 10 steps. What to remove, in what order, and what to check after.

Cornering light bulbs L148 and L149 on the VW Touran I (platform 1T) are changed from the back of the headlight without taking the headlight out. Ignition off and key removed, the cover pulls off, and the bulb sits clipped into the reflector with its connector still attached. Pushing the connector in the direction of the arrow loosens the bulb; the holder is then drawn out of the reflector with enough care for the wiring length, and the bulb pulls straight out of the connector. What decides the job: never touch the glass of the new bulb, as grease from the fingers clouds it once it heats, and seat the cover cap properly afterwards, because water getting into the headlight damages it permanently. Finish by checking the headlight functions and the beam setting.

10 steps

🧭 Before you start

The cover is pulled off and the connector pushed in until the bulb comes loose in the reflector. The holder with the bulb is drawn out of the reflector, minding the wiring length, and the bulb is pulled straight out of the connector. The new bulb is guided into the housing and pushed into the reflector until it engages audibly, the cover is refitted so it seals, and the headlight is checked for function and setting.

Fits: VW Touran I (1T, 2003–2015)

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Push the connector in first; the bulb is clipped into the reflector and loosens with it.
Do not touch the glass of the new bulb.
New bulb must engage audibly in the reflector.
Cover cap must seat properly; water ingress ruins the headlight.
Check headlight function and beam setting afterwards.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

Switch off ignition and all electrical consumers, and remove ignition key.
Pull cover (2) off. [Note: Cornering light bulb(1) is clipped into reflector.Initially, connector is not disconnected when removing cornering light bulb.]
Push connector (1) in (direction of arrow) until bulb feels loose.
Grasp on bulb holder and pull bulb holder with cornering light bulb out of reflector, taking connected wiring length into account.
Pull cornering light bulb(1) in (direction of arrow) straight out of connector (2). [Note: Do not touch glass of cornering light bulb when installing. Fingers leave traces of grease on the glass, which evaporate when the bulb is switched on and cause the glass to cloud over.]

VW? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →

Guide cornering light bulb into headlight housing.
Push cornering light bulb into reflector.
Cornering light bulb must engage audibly.
⚠ When installing cover cap, ensure that it seats properly. The ingress of water will lead to permanent damage to the headlight. — Check functions of headlight.
Check headlight setting and adjust headlight if necessary 18.1Descriptions of work

Other VW procedures

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Workshop data on this page last updated 20 Sep 2026.