2001 passat auto

**kharva007** · 08-02-2007,07:37 PM

i have a 2001 passat auto wiv 75k on clock its a 2.0 s and drives very slow 4 sum reason, feels like a 1.4 engine any help please wot could b wrong wiv this car????

also i have no engine lights on my dash but 4 some reason the temp gauge works when it feels like it wots wrong with this please??

**Col** · 08-02-2007,07:50 PM

The temp sensor is what may be making the car slow.

If the ECU is getting the wrong signal from the temp sensor then it will be be fuelling and timing incorrectly.

The temp sensors are renowned for going awol. They are an easy diy fix and with some G12 antifreeze to top up should cost you around £25 plus an hour of your time.

**kharva007** · 08-02-2007,08:02 PM

thanks 4 a quick reply but my friend put my car on a computer fault reader and nothing came up on this computer, told me that the gauge on the dash could b at fault. so u think by changing the sensor should help?
coz it does rev quite high n drain my petrol and pickup very slow

**kharva007** · 08-02-2007,08:05 PM

also g12 antifreeze is that just ordinery antifreeze or somthing special??

do u also have any idea how much power my car has
2.0 s auto 51 plate

thanks

**Col** · 08-02-2007,08:06 PM

A faulty temp sensor will not neccessarily produce a fauly code as it would still be producing a signal.

However that signal can be totally wrong, which in your case is exactly what is happening as you are saying the temp gauge only works when it wants to.

These are a very common fault and VW will probably provide a modified version when you buy a new one.

**Col** · 08-02-2007,08:07 PM

Originally Posted by kharva007

also g12 antifreeze is that just ordinery antifreeze or somthing special??

do u also have any idea how much power my car has
2.0 s auto 51 plate

thanks

I thought the 2.0 made 115bhp.

Sad to say this but they are knick-named the "2.slo" / "2.slow"

G12 is not normal antifreeze. You need to use it or a G12 equivalent. Mixing it with normal blue glycol stuff can cause sludging in the cooling system.

**gresty** · 08-02-2007,08:08 PM

G12 coolant is meant to be in the system for the life of your vehicle Dont mix G12 with normal ethlene glycol based antifreeze. You can have one or the other but not mixed.

**kharva007** · 08-02-2007,08:11 PM

so that temp sensor should also fix my car temp gauge right?
do i jus get a standerd 1 for my car from my ****** vw dealer?

**kharva007** · 08-02-2007,08:12 PM

jus bought my car so dont really know which is in there at the mo, could that g12 antifreeze av any effect on the perfomance on the car

**gresty** · 08-02-2007,09:03 PM

G12 wouldnt have any effect on performance. If the coolant in pink (or blue if its none genuine VAG coolant) you have g12 in the system. If its green you have standard glycol based antifreeze.