Keep in mind that the ProMaster/Ducato was designed in 2006/7. LED lighting was around but not used like they are today.Sorry, let me clarify: I dont think the use of incandescent bulbs over LEDs is a dealbreaker at all. It is somewhat of a minor detail. I was pointing out that LEDs that I thought it may be telling that the designers of this vehicle chose to incandescent vs LEDs. It seems like a shortcut/cost saving decision and made me wonder what other shortcuts the designers may have taken that I am not aware of. On my previous vehicles most of the incandescent bulbs have needed replacement before the usable life of the vehicle expired (lets say 20ish years 200kish miles). I was not aware that incandescent bulbs could have such great longevity, that is excellent, I hope I never have to replace the incandescent bulbs on my PM. I will need to replace all of the interior lighting with LEDs so that I can use a smaller camper battery system.
Thanks, phil & Co. That pub doesn't specifically mention clearance lights, but they are probably part of the headlight circuit being controlled by the BCM. Apparently I could also substitute LEDs if I do the prescribed "chicken dance" to disable the BOD (bulb out detection). But, I think I'll just stick with the factory bulbs and hope RD is right about their longevity. LED clearance lights may also be way too bright. FYI, the bulb holders in the front clearance lights on my 2017 can be removed from below. I haven't checked for outside access.This maybe of some use to someone.
The ProMaster has been designed and developed using European Spec incandescent lights. These lights are controlled by a computerized module called the “Body Control Module” (BCM). This module controls the left and right head lights, left and right DRL, the left and right front and rear running lights, the left and right front and rear turn signals, and the left, right and center brake lights, and the reverse lights independently. The BCM utilizes “smart” technology that has the ability to monitor the current (amperage) on some of the lighting outputs
click - Exterior Lighting Modifications / LED's
Are you making sure to clean the glass on each new bulb with rubbing alcohol, and making sure not to touch the glass or any part of the housing when installing? The slightest amount of oil from your hands or dirt from touching the back of the housing when installing will certainly shorten the lifespan of the bulb.I have replaced six headlights so far and the light switch on the blinker handle was replaced under warranty.