IMPORTANT BEFORE INSTALLATION

Installation and wiring of front headlights must be performed only by a qualified auto electrician.

Not allowed:
— installation by unqualified personnel
— work performed without proper automotive electrical experience

Failure to follow these requirements may result in:
— dashboard errors
— incorrect headlight operation
— loss of warranty

1. Connector connection

Typical problem:
Errors on the instrument cluster, unstable operation of the lighting.

Procedure:

Connect the connectors strictly in accordance with the supplier’s instructions intended for the specific BMW / Mercedes model.

Make sure that:

  • the connectors are fully inserted;
  • they are secured without any play;
  • the contacts are not damaged or misaligned.

2. Control unit installation and sealing

Typical problem:
Moisture entering the headlight housing and failure of the electronics.

Procedure:

Carefully connect the connector to the control unit.
Install the control unit on the headlight housing.

Check the sealing rubber:

  • it must sit evenly in the mounting seat;
  • without misalignment, folds, or pinching;
  • the control unit must be pressed evenly around the entire perimeter.

 

Headlight adjustment

Adjustment of the front headlights vertically and horizontally must be carried out exclusively at a service station that has:

  • appropriate adjustment equipment;
  • qualified specialists with experience working with BMW and Mercedes lighting.

Self-adjustment or adjustment without specialized equipment is strictly prohibited.

 

Important information

All front lighting is inspected at our warehouse before sale to customers for:

  • proper operation of the light elements;
  • serviceability of the mechanical headlight adjustment mechanisms.

In this regard:

  • claims regarding the inability to adjust the headlights are not accepted;
  • such cases are considered mechanical damage to the adjustment mechanisms caused by unqualified actions of service station employees or third parties.

Damage to the adjustment mechanisms is not a warranty case.

 

Fogging of the front headlights is a normal operating condition

In cold or humid weather, during sudden temperature changes, or after washing the vehicle, temporary fogging of the inner surface of the headlight lens may occur.

This is not a defect and is considered a normal operating condition.

Normal occurrences:

  • light haze or condensation along the edges of the lens;
  • fogging during rain, snow, or frost;
  • disappearance of condensation after the vehicle warms up and the headlights are switched on.

Modern headlights are equipped with ventilation channels that ensure pressure equalization inside the housing.

Not considered a warranty case:

  • absence of water droplets inside the headlight;
  • temporary condensation without impairment of lighting operation;
  • natural disappearance of fogging after driving.

Grounds for a claim:

  • presence of droplets or water inside the headlight;
  • signs of incorrect installation of the control unit or seal.

 

WARRANTY

Basic warranty

14 days from the date of sale.

Does not apply to damage caused by:

  • incorrect connection;
  • loss of sealing integrity;
  • installation by unqualified specialists;
  • mechanical damage to the adjustment mechanisms.

 

Extended paid warranty

An extended warranty is available for additional protection:

  • Term: 12 months
  • Cost: $200
  • Covers: technical malfunctions provided that the installation was carried out correctly by a qualified automotive electrician and this instruction was followed.