How the heck do I get these bolts off??
Thread Starter
AudiWorld Super User
Joined: Jun 2001
Posts: 4,238
Likes: 1
How the heck do I get these bolts off??
I am attempting to replace my thermostat. Bentley manual tells me to remove this pipe to get to the thermostat. How do get these bolts off? There is NO room to get a socket on them, even if I use an extension and universal joint. I was able to get to the top one, but couldn't get the socket to seat on the bolt enough to get it to turn. And the bottom one, forget about it. No room to get anything down there.
Do I need to remove the alternator? Bentley doesn't mention anything about this. Am I missing something?
<img src="http://www.msu.edu/~lytleric/IMG_1963.JPG">
The bottom bolt is number 4 in this diagram:
<img src="http://www.msu.edu/~lytleric/thermostat_hose.gif">
Do I need to remove the alternator? Bentley doesn't mention anything about this. Am I missing something?
<img src="http://www.msu.edu/~lytleric/IMG_1963.JPG">
The bottom bolt is number 4 in this diagram:
<img src="http://www.msu.edu/~lytleric/thermostat_hose.gif">
Thread Starter
AudiWorld Super User
Joined: Jun 2001
Posts: 4,238
Likes: 1
Ugh, I hope not. This is the procedure given in the Bentley:
They make it sound like nothing else is required:
-With the ignition switched off, disconnect the battery Ground strap.
- Drain cooling system Page 19-4
- Detach coolant hose at bracket for solenoid valves above alternator.
- Unbolt bracket for solenoid valves -2- and -3- in front of intake manifold and detach dipstick guide tube -4-.
<img src="http://www.msu.edu/~lytleric/Therm1.gif">
--------------------------------------------------------------------------------
19-15
- Pull connector -3- and vacuum hose -1- out of bracket.
- Lay bracket clear to the side without detaching remaining connections.
<img src="http://www.msu.edu/~lytleric/Therm2.gif">
- Disconnect coolant hose from elbow connection -3-.
- Remove bolts -4- and take off elbow connection, O-ring and thermostat -1-.
<img src="http://www.msu.edu/~lytleric/thermostat_hose.gif">
--------------------------------------------------------------------------------
19-16
Installing
- Clean and smooth down sealing surface for O-ring as required.
- Insert coolant thermostat . Installation position: bowed metal strip on thermostat must be vertical.
- Moisten new O ring with coolant G 012 A8 D.
- Tighten bolts.
- Fill up with coolant Page 19-6 .
-With the ignition switched off, disconnect the battery Ground strap.
- Drain cooling system Page 19-4
- Detach coolant hose at bracket for solenoid valves above alternator.
- Unbolt bracket for solenoid valves -2- and -3- in front of intake manifold and detach dipstick guide tube -4-.
<img src="http://www.msu.edu/~lytleric/Therm1.gif">
--------------------------------------------------------------------------------
19-15
- Pull connector -3- and vacuum hose -1- out of bracket.
- Lay bracket clear to the side without detaching remaining connections.
<img src="http://www.msu.edu/~lytleric/Therm2.gif">
- Disconnect coolant hose from elbow connection -3-.
- Remove bolts -4- and take off elbow connection, O-ring and thermostat -1-.
<img src="http://www.msu.edu/~lytleric/thermostat_hose.gif">
--------------------------------------------------------------------------------
19-16
Installing
- Clean and smooth down sealing surface for O-ring as required.
- Insert coolant thermostat . Installation position: bowed metal strip on thermostat must be vertical.
- Moisten new O ring with coolant G 012 A8 D.
- Tighten bolts.
- Fill up with coolant Page 19-6 .
AudiWorld Super User
Joined: Aug 2001
Posts: 5,291
Likes: 0
I unbolted the alternator, and those bolts to the thermostat are easily accessible.
just undo the accessory belt, then there are a few bolts to the alternator. Push the alternator to the side, and work on the thermostat.
For the tensioner:
<img src="http://img.photobucket.com/albums/v486/gmallare/tensioner.gif">
For the tensioner:
<img src="http://img.photobucket.com/albums/v486/gmallare/tensioner.gif">
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