Evening all,

 

My brother in law is replacing some bulbs in his car and wants to use LED's. It states W21W and WY21W. Does anybody know what the difference is between them?! 

 

Thanks,

Jonny

As far as I know, the only difference is that WY21W are amber but I stand to be corrected. 

 

If it's the front indicators on a MK3 Octavia it's a bumper off job, and you will need to pierce the headlight unit then repair with a kit bought from Skoda. I kid you not. 

Front indicators are PWY24W. Can be done without bumper off. Harder, need strong fingers & some skill, but dooable. Pictures attached. On 4th picture there's pretty much all the tools I needed. Round saw was used to incision the opening, which was then fully broken out using wooden part of hammer.

 

Grease I used to grease the seal on repair kit, wasn able to push it in fully (access is very limited) before that.

Edited 3 February, 20179 yr by milanj