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Completed the thermostat replacement, this past Monday, along with the flange adapter, bolts , o-ring and a gallon of coolant mixed 60/40 with distilled water. Confirmed the thermostat failed closed from 87 too over 100 degrees C in water on the kitchen stove. All parts, but the water, are...

Thank you everyone for the input and feedback! I will update this post once the thermostat and related parts are replaced. Happy New Year too all!

Further note: If the water pump is bad, I will plan to have the timing belt replaced, as it is due at 180k.

saturnhacker, Both fans come on with the A/C. The cabin heater alone seems to be the principle means to keep the engine cooler. I concur with your most recent comments. The ambient temperatures have been very cold here in the Bay Area and Northern California. It got cold and very overcast...

Well, the car slogged home in San Francisco to East Bay stop and go Friday commute traffic after we pick it up from the dealer. I escorted my wife most of the way with our 2012 Golf TDi. It took about an hour to drive about 15 miles. My Wife driving with the heater and A/C on. My wife called...

Thanks Ski, My thinking too, but.... the dealer thinks they need to pull the head. They put all the old parts back on the car, so no working fan either. I am off to get the car. Will keep this thread updated as to the results. Thanks again!

Good hot heat.

I have a 2002 Golf GLS TDI (ALH). Always dealer serviced since new and almost always within a few hundred miles or less of recommended intervals. About a week ago, on the eve of it's 160k service, my wife and oldest daughter noticed it starting to overheat during a typical SF Bay Area commute...

I believe we agree, I took the above statement for granted. Please note how Castrol states viscosity at various temperatures, they do not explain the chemistry as to why though, as it does not matter to "the motor", if you will. It has been "forever" that Car Manufactures have stated that Oil...

As per VW / Audi TSB's, the oil [ambient] viscosity, as listed on the bottle and in TSB’s, is really secondary to the VW OIL QUALITY STANDARD (VW 502.00, 505.01, 507.00 et. al.) as the appropriate viscosities are subordinate to the VW Oil Quality Standard for any given VW AG Group motor, be it a...

Whatever the viscosity on the bottle, that viscosity reference is for ambient [air] temperatures at engine start up and the "W" means winterized. Once the engine is at stable operating temperature the oil viscosity will be what ever the base stock viscosity is, as determined by the motor oil...

Well, at least on my A4 and Golf TDi the belly pan acts an aerodynamic device in smoothing the airflow under the car. Cooling air enters above and below the bumpers on both cars and exits out the gap between the belly pan and the underbody. I would guess that the airflow flowing under the car...

I hope this clears some things up. For the reasons unknown to me, Castrol markets their oils differently in the USA than the rest of the world, right down to the plastic bottles used and the brand names in many cases, except for maybe "GTX". The oils in question here in this thread and in...

VW/Audi have a specific technical bulletin on G12/G11 antfreeze and what is acceptable in terms of mixing and what is not. I'll post the number from my archives ASAP. In short -FLUSH, RUN THE ENGINE WITH CLEAR WATER to OPERATING TEMP. --COOL DOWN, FLUSH, REPEAT PROCESS, DRAIN, Fill with the...

I have used only Genuine VW/Audi Batteries since my 1981 Rabbit Diesel pickup and through to my type 89 Audi 80 quattro with its gas venting system for the battery. My current A4 Avant has a similar system. I have always gotten five plus years of service with them. My 2002 Golf still has the...

Not exactly confirmation information, but I think useful information none the less. http://www.arteco-coolants.com/index.htm http://www.orvema.nl/Orvema/Coolmix_Coolants/Approvals.htm :D :)

You may wish to order the following TSB's from Volkswagen to review with your Dealer if they relate to your problem. Please note the issue date of TSB V37 06-06. VW /Audi TSB's are for more than just selecting the correct motor oil. Your Dealer should have them already available for their...

Making Gas from Prairie Grasses (738 words) December 7, 2006, All Things Considered Sample | Purchase this transcript ROBERT SIEGEL, host: From NPR News, this is ALL THINGS CONSIDERED. I'm Robert Siegel. MELISSA BLOCK, host: And I'm Melissa Block. The idea of burning grass to fuel your car or...

I have no doubt that the reputation of Audi AG and VW AG for engineering excellence matters to them long after the warranty period. The reason VW AG prefers the word “conform” over the word “approved” lies in the meaning of each, it would appear. For example: “My wife approved of the...

Apparently you are referencing an "old" bottle, although I note the Customer Service Phone numbers are the same, it would seem, as the current [production] product bottle SUNRG has kindly provided. The barcode SKU# and Castrol Product number are clearly different. Referencing the production...