Volkswagen Automobiles Forum banner
1 - 7 of 7 Posts

·
Registered
Joined
·
1,121 Posts
as it says in the title the temp is fluctuating. the car warms normally from cold all the way up to 90 deg, as it always did. lately though it goes back down to 70ish after a few miles and then back up again. sometimes it stays up at 90 the second time and other times it goes down and stays.

there is coolant in it. and the car heats inside normally.

any ideas?
 

·
Registered
Joined
·
1,318 Posts
Having the very same problem on the girlfriends 98 A4 1.6. Heats up normal but on a journey it can drop down to nearly cold then back up.
On a long trip it's up and down like a whore's knickers
 

·
Registered
Joined
·
84 Posts
Could it be the thermostat? Even though you said it heats up normally, can't think of anything else that would cause it to fluctuate. I presume you would hear the fan if it was cutting in?
 

·
Registered
Joined
·
875 Posts
Was watching this thread for info. On the Passat TDi I had in, the stat made no differance. Fan running perfect, no overheating or coolant loss, Car absolutly perfect in every way. Next to try is a temp switch, just a poss.

John
 

·
Registered
Joined
·
1,121 Posts
Discussion Starter · #5 ·
QUOTE (johnny99 @ Jan 10 2006, 09:16 AM) <{POST_SNAPBACK}>Was watching this thread for info. On the Passat TDi I had in, the stat made no differance. Fan running perfect, no overheating or coolant loss, Car absolutly perfect in every way. Next to try is a temp switch, just a poss.
John

ditto, well except for the "car absolutly perfect in every way"
 

·
Registered
Joined
·
87 Posts
Common for the green switch 059 919 501A.. to give problem
The needle should move to fast for normal temperature change
if you have a diag. reader it may have a fault stored or look in the MVB.01-08-01 or 17-08-03
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top