All Things Mk5 > Mk5 General Area
Thermostat questions
Numero9:
New thermostat and sensor ordered. Are there any other o-rings or bits that I should replace along the way?
OllieVRS:
--- Quote from: Numero9 on August 08, 2022, 08:53:16 am ---New thermostat and sensor ordered. Are there any other o-rings or bits that I should replace along the way?
--- End quote ---
I had a coolant leak from the o-ring on the main thermostat (marked 5 on this diagram), the part number for it N90365302, might be worth replacing while you're in there :happy2:
FatWelshBoy:
The specialist I use changes thermostats by removing the inlet manifold as he says it is the easiest and quickest way, he has done 100's so take what he considers easy with a pinch of salt.
Numero9:
I'm going to go down the alternator removal route with this. Seen a few videos on that way and have had prior experience on my other car on removing the alternator and getting it back it.
@OllieVRS - where did you get that parts diagram from?
OllieVRS:
--- Quote from: Numero9 on August 09, 2022, 08:09:32 am ---I'm going to go down the alternator removal route with this. Seen a few videos on that way and have had prior experience on my other car on removing the alternator and getting it back it.
@OllieVRS - where did you get that parts diagram from?
--- End quote ---
I think off of Google images, I pulled this image off one of my older threads when I was investigating my coolant leak. Also to clarify since there are multiple rings marked 5, it's the one with the red arrow.
I've found a similar diagram which is even better detailed: https://workshop-manuals.com/skoda/octavia-mk2/drive_unit/2.0/110;_147_kw_fsi_engine/engine_cooling/parts_of_cooling_system_summaries_of_components_engine_identification_character_bwa/parts_of_cooling_system_engine_side/
The O-Ring I'm talking about is marked 9 on this one, directly below the 26.
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