Normally the automaker uses a specific Engineering criteria for serviceability with minimum clearance specification. Due to Front Over Hang reduction (Figure 1) regarding to Emerging Markets countries and technology inside in the hood compartment, the H4 bulb serviceability is affected. This paper shows a solution that provides an easy service procedure reducing package and complete sealed connector system for an H4 head lamp bulb.
Cancino Junior, I. and Fazzolari, D., "Headlamp H4 Bulb Socket: Importance of the Bulb Serviceability," SAE Technical Paper 2014-36-0244, 2014, https://doi.org/10.4271/2014-36-0244.
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ECE R48 and Contran 227 Legal Requirement The lighting system shall meet the regulatory requirements of the countries where the vehicle is sold
Instruction to make the H4 bulb serviceability http://www.instructables.com/id/How-to-remove-the-frontof-a-smart-car-to-replace-/?lang=
Cancino , I. , Fazzolari , D. , Kasperavincius , E. , Furlan , E. Headlamp H4 Bulb Serviceability Improvement - When the bulb access is critical Design For Six Sigma Project #3613 General Motors of Brazil April 2012
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Headlamp H4 Bulb Socket: Importance of the Bulb Serviceability
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