Drain coolant, see repair manual, General Engine, group 19 Apply compressed air to expansion tank to blow out remaining coolant Close cooling system, fill with distilled water Run engine for a minimum of 2 minutes Drain water and apply compressed air to expansion tank as before Close cooling system and fill with appropriate mixture ratio of G 012 A8D A1 and distilled water Test Drive, check coolant level and add if necessary. A word of warning to others, I recently found that my driver's side fan had died and given that my blower fan died last year figured it would make sense to replace the smaller fan as well. If the Thermostat doesn't open completely, there won't be enough water flow through the radiator which can cause overheating, and there may not be enough hot water flowing to allow the radiator fan switch at the bottom of the radiator, to heat up and turn on the radiator fan. The project explained here entails first removing the front bumper. Some coolants will come premixed. Only the low speed fan should come on from the after run relay when the ignition key is turned off.
Also check the small plastic fitting for the small return vent hose that connects the radiator to the over flow tank. If we get a chance to perform the procedure, we will be sure to document it. This wire is also connected to the coolant expansion tank level sensor. My fan would engage for about 10-15 seconds and then stop spinning again. This fuse 12 also supplies +12V to the back up lights and to the speedometer sending unit in the transmission.
As mentioned, the radiator has a three terminal thermoswitch temp sensor switch that switches for two different temperature ranges. You insert the blade into the connector opening to release the locking tab. Looking down into the engine compartment behind the radiator, you can see some wiring surrounding the fan shroud that was attached with a zip tie, rather than with the metal clip as from the factory. Local Pickup and worldwide shipping available. It appears that I was not careful enough and now I am waiting for a replacment to arrive at the local dealer.
This will release it from the housing. I would replace the fan. If all of the above tests work as expected, and the Turbo pump and low speed fan come on when you jumper across the connector socket, the after-run relay is not working and should be replaced. Figure 31 As you pull the radiator support panel forward into the service position, keep an eye on various wiring connections and hoses. Likely, you need a radiator flush.
On the radiator fan switch pull back the rubber boot slightly and then pull the connector out. The upper radiator support mount with bracket on the left is removed, as well as removing the nuts from the rubber mount on the right side top. The outside air temperature gauge indicated 117 degrees F. Figure 3 This view of the driver's side grille should give you an idea of the configuration of the clips on the back of the grille. This grille feeds air to the duct that supplies the side-mounted intercooler. Ensure that the heater is fully on, fill the reservoir and try removing some air by squeezing the large hoses. The freeze plug core plug with the nipple on it, should be checked for excessive corrosion and replaced if necessary.
Make sure you don't install the wrong water pump or wrong timing belt on the 1989 and later vehicles. I was going to ask if you had checked the battery top they take 30 amp fuses. If the motor doesn't spin up, you've found the culprit. In a few cases when this two temp thermoswitch acts up and is defective, the 2nd speed radiator fan will come on for a short time and then go off. Description for Audi Tt: 1.
The resistance from E1 to E3 is ~0. Install the thermostat with the cross brace vertical, orientated at 12 and 6 O'clock See the for details on correct operation of the coolant temperature gauge. Why don't we show the price? The other option is that your radiator also in your front bumper is overheating and contributing to the problem. The same can be said for the hose that connects the metal turbo coolant pipe to the side of the engine block to the freeze plug nipple. Could only be one thing. Engines are more fuel efficient when they are run at the hottest temperature they can stand without causing any problems. The factory replacement hose is made with silicone rubber to withstand the extended high temperatures.
My car was over heating in bumper to bumper traffic yesterday. In order to improve access to the front of the engine, Audi created an ingenious solution. Animals love its sweet taste, so even a spilling a small amount on your garage floor can end up in the dog's stomach pretty quickly. Wedge your fingers under the black plastic edge of the bumper to pry the fasteners loose. This fuse also supplies +12V to the injector cooling fan relay.