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Fogging in headlamps and rear light clusters on Cayman 718

Dick Dastardly

Dick Dastardly

PCGB Member
Member
Has anybody else had an issue with ‘fogging’ and condensation, appears to be most marked during showers when weather is hot?

Never had this on other vehicles. I wonder if it is a ventilation issue?

I noticed the same thing with other 718’s , although it clears I wonder if this may be an issue over time with a build up of moisture in in the housing.

Car is just coming up to a year old so will probably e-mail the dealer to ensure that this is on record should there be a problem in the future.
 
I've not experienced it myself on my 981 but have seen it in the rear light clusters of a 718 demonstrator at OPC Chester. I would have thought that they would be sealed units. Perhaps take some photos when it next happens then you have some evidence.

 
I noticed the fogging you mention on both the headlights & rearlights of a couple cars (other manufacturers) at a supercar event a couple weeks ago.

Conditions at the time were cold breeze, with the vehicle in sunlight

 
I've never noticed it on my Porsche (it doesn't go out when it's cold and wet), but I did have headlamp fogging on my BMW. BMW said it is not a problem (well, they would), just use the lights and it would disappear. Sure enough, it did.

I guess these units cannot be fully sealed or you wouldn't be able to change a bulb. Perhaps when all headlamps are LED they will be properly sealed. Talking about sealed, who is old enough to remember the old sealed beam headlamps used back in the 1970s? My memory is that they were not very good. Despite being 'sealed' the reflectors used to corrode, along with everything else on the car -weren't 1970s cars horrible!

Alan

 
It does seem strange that the 718 appears to have such a problem, sealing of the Porsche units on my 986 and two 987's has been good with no need to add sealant etc maybe it needs investigation by removal of a front lamp unit since removal and opening the rear of the unit is the way of switching lights over for continental driving and the method is in the drivers manual why not investigate further.

Agree with you on the 70's cars most were rubbish but I never had a problem with sealed beams, the earlier, pre halogen headlamp bulbs however sometimes went just from hitting a bump in the road!

As for damp in headlights, I've had no problems in any of my Porsches but my day to day shopping car, a BMW Z4 certainly does have a problem after I changed bulbs recently, a silly access to change bulbs through the wheel arch and a deformed seal, common problem apparently, so to dry them out I'm going to try gel packs in the lamps while it' stands in the garage for a few days and hope that takes it out then I'll seal them better!

 
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