As for the "correct parts" you have quite a few there and I have not done that type of work on a 2.5L, I would hate to give you wrong info and cause you to have to send parts back or order more correct parts. If anyone has the time to steer me in the right direction, I would appreciate it.Īlmost 10 years and 79k could be a good time, to replace those items and it could be a case, of preventative maintenance, being a good idea. Am I missing anything from that list, should i remove something? Do i need new coolant since i just got a new coolant in ?Ĥ. Do i need to buy new bolts and if so which ones, what kind, etc ?ģ. Water pump ( any recommendations on which brand ? ) plastic or metal ?Ģ. Idler pulley, accessory belt - Not sure if this one needs to be replacedġ. Tensioner lever and pulley, for A/C compressor belt.Ħ. Can someone check If I'm missing something.Ĥ.Tensioner lever and pulley, for alternator belt.ĥ. So after some research I have come up with this. I just don't want to pay twice to disassemble the engine and replace those two parts when i can do it all in once.īy the way, is the capacity for coolant only 1 gallon ? It seems that that is all the car took in. One question though, I was looking at videos on how to replace the thermostat and it seems that if you replace the thermostat you might as well replace the water pump because it's located next to it? Or am I wrong? I just ordered a scanner/code reader that does live reading of temp too. Get good quality oem parts looking online, it seems VW uses a German brand Wahler brand thermostat. It would be a drag to have to take everything apart again, if the old coolant flange/cover, ended up leaking after you got everything back together. The plastic cooling parts tend to get brittle from the heat of the engine and tend to leak. From what I can tell the housing is made out of plastic and it is probably, a good idea to replace that as well. The temp guns are pretty cheap now a days many places sell them pretty cheap online:Īs for the parts I would look up the correct year and model of your car, you can confirm by using your VIN #. So, you could rent a scan tool or temperature gun and run the testing procedure, to see if the temps get up to the correct temps and then, that would confirm the thermostat diagnosis. Most auto parts stores offer tools that you can rent/borrow and these could help you look at the coolant temperature. ![]() Well, you need some way to read the coolant temperature, this can be done with a scan tool or a infrared temp gun. Service manual info: thermostat replacement: ![]() at least 7 mmīypass Thermostat Starts to open. Thermostat: Specifications: New Beetle L5-2.5L (BPS) (2006) If coolant temp drops below minimum operating temperature (80☌) or never reaches operating temperature, (verified by external thermometer) suspect failed thermostat Hold RPM around 1,500rpm and watch coolant temp increase in Graph until thermostat opens, indicated by a slight drop in coolant temp Start Engine cold, graph Coolant Temperature Sender (G62) Typically MVB Group-001 Use Graph function in VCDS, Measuring Value Blocks - MVB Inspect wiring for G83 (Coolant Migration, damage, corrosion, etc) Inspect wiring for G62 (Coolant Migration, damage, corrosion, etc)Ĭheck (if applicable) G83 - Radiator Outlet, Coolant Temperature Sender Note: testing procedures using VCDS or other scan tool:Ĭheck G62 - Engine Coolant Temperature Sender
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