IM with 1.8T Fan Issue

Thanks for sharing that bit of knowledge.

Nice cars - feels good when you self solve an issue!  I got a ride in Phil/Fear the Yorkie's 1.8L IM years ago.  Very nice car - I think he still kicks himself for selling it.  He did some upgrades to increase performance - might be cronicalled here on SOC.

@ProfHollan posted:

I am posting this so the information might be findable on the internet by the few people with cars with radiators who might be interested.

I have an Intermeccanica 356 D convertible with an Audi 1.8t engine. I have had an issue with the two-speed radiator fan. Once it goes to high speed, it doesn't shut off while driving.

Took a while to debug the issue. The fan controller is a Spal pwn v3. I was able to find the manual online. Controller has three settings. It isn't possible to see what it is set at, only possible to reset it. I think it was set to the first setting (a LOW temp of 170° (low speed fan) and a HIGH temp of 185° (high speed fan)).  It was challenging to find the normal operating temp of the 1.8t online. From googling around it seems to be about 90C (194F). That would explain why it never turned off once it came on. Set it to the second setting (low at 190 and high at 205). For the first time since I have had the car the high speed fan turned off while driving after it had turned on.

Hi, the controller I believe is under the rear seat and is wired to do two temps and it also has kind of an overide  that also turns it on high when you have the AC On.

My subie 2.5L with two rads, has that also, but we also have a meziere pump in the middle to aid in coolant circulation on idle.

I believe Beck also has a sensor to continue to cool the car on their pump.. a different one that they use.

BTW my coolant is lifetime or forever Evans Coolant, have not had to change it in 10 years best thing IMO.

Had not heard about Evans. Just reading about it. Came across a Jay Leno video about it from 12 years ago.

Jim