2002 Volkswagen GTI URGENT-THERMOSTAT

2002 VOLKSWAGEN GTI
135,000 MILES • 4 CYL • FWD • MANUAL
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MSMCCORKLE
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  • 33 POSTS
I need to change my thermostat on my 2002 VW GTI 1.8T. I noticed that it is behind the alternator and tucked under the engine block, can someone give me an easy way to get to the thermostat without ripping everything apart? I would appreciate it. Thanks.
Oct 16, 2010 at 8:15 PM
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BLUELIGHTNIN6
  • ✓ASE Certified Mechanic
  • 16,542 POSTS
  • ASE Certified Mechanic
The thermostat is located in the bottom of the water pump housing.

If equipped, remove the lower engine shield.
Place a large drain pan under the vehicle to collect the coolant.
Remove the radiator cap and drain the cooling system into a suitable container.
On 1.8L engines, remove the water pump housing drain plug.
Loosen one bolt at a time until coolant begins to flow.
Remove both bolts and remove the thermostat.

To install:

Install the thermostat using new O-ring.
If removed, install the water pump drain plug with a new O-ring and tighten to 22 ft. lbs. (30 Nm).
Torque the housing the bolts to 88 inch lbs. (10 Nm).
Top off cooling system with the recommended fluid and concentration.
Oct 16, 2010 at 10:42 PM
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