Question about Cars & Trucks

1 Answer

I have a 2003 VW Passat 1.8T. When I first start and drive the car, the coolant temp is normal. After a few miles, it will suddenly climb to the red, and STOP check coolant comes on. If I loosen the cap to the coolant reservoir alittle I can hear air and the coolant coming into the reservoir. I tighten the cap, start the car, and the temp is normal again, and drives OK until it is cold again.

Posted by on

  • Matthew Globe Dec 05, 2012

    I recently purchased this car from a private party. It ran fine, it seems, until I took the coolant reservoir cap off while I was going over the car. It is a little low on coolant. The heater doesn't work, however I will try the procedure you mentioned, to try to top it off and bleed the air. Thank you.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 6,674 Answers

Has coolant level been going down in return reservoir at all, as in have you had to add coolant recently to bring it up to top level? Have you tried running engine from cold, with heater on and let it run up to normal temperature with cap off return reservoir? If not do so, and watch level in reservoir and if it goes down, add as needed until engine running at normal, and not overheating. Allow rad fan to kick on & off a few times before re-installing cap on reservoir. Pay close attention to engine temp while doing this. If it goes high, shut it off and let cool. Be careful, my son's Passat just had overheat problem and turned out to be impeller on water pump ( internally) was spinning on shaft of pump. Thermostat is certainly a consideration if coolant is full, and all air bled out. Keep me posted on what happens when you run with cap off and keep reservoir full. Don't forget, heater on while doing this.

Posted on Dec 05, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 8 Answers

SOURCE: overheating problem

looks like you have done everything but the problem with your car is that the cylider head gasket has gone have a look at the dipstick or remove the oil filler cap if it looks like mayo then 100% head gasket has failed you said no water on the floor so it must have gone into engine only way this can happen is head gasket failing, if you have put lot of water in to the cooling system then your sump will be full of oil water mix.

let us know your findings so we can help you more if you need it

Posted on Apr 22, 2009

  • 30 Answers

SOURCE: Check Coolant / STOP lights

If the coolant level is low in the expansion bottle then the light will come on and you need to locate the leak. If the bottle is full then the level sensor in the bottle is bad!

Posted on Aug 14, 2009

j_del
  • 1586 Answers

SOURCE: VW passat coolant warning light on

There's a level sensor plugged into the bottom of the coolant reservoir. Unplug it and clean the contacts with electrical contact cleaner. If that doesn't do the trick, replace the sensor.

Posted on Dec 01, 2009

  • 752 Answers

SOURCE: 1999 3.1 buick century engine. Engine seems full

make sure your antifreeze or coolant isnt mixing with your oil it would be gead gasket and also check your thermostat

Posted on Jan 25, 2010

  • 1 Answer

SOURCE: BMW 328I No Heat ..Cold air only

I have the same problem start with my 2004 Honda Civic Si today. I checked the coolant and it looks fine. I can see it being the thermostat, but a water pump runs of a belt, doesn't it? That either seizes and stops or it works, I would think, so I'm wondering how the water pumo coild be the problem?

Posted on Nov 24, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Location of a coolant temp sender on a 2003 vw 1.8t passat


Hi. See the suggested solutions. They are good.

Apr 11, 2014 | 2003 Volkswagen Passat

1 Answer

2003 vw 18.t temp lights goes on but temp gauges read normal


If your coolant overflow is bubbling then regardless of what your gauge says you are having overheating issues. If your coolant is missing with no aparent leaks then you need to check your oil for a milky consistency and apearance which would most likely point to a blown head gasket. This would also explain overheating. Hope this helps

Dec 27, 2013 | Volkswagen Jetta Cars & Trucks

1 Answer

I have a 2003 alero with the v-6 what happened was driving down the road the heater works fine. then all of a sudden it was blowing cold air and the temp gauge started climbing. it started blowing how air...


Sounds like the water pump is cavitating . Replace water pump. Check coolant level also. Open the bleeder valve usually located on thermostat housing to remove air from system. close valve when coolant is present while filling. close radiator cap and top off recovery bottle to correct level. These engines are prone to overheating, do not let temp gauge get in the red.

May 01, 2017 | 2003 Oldsmobile Alero

2 Answers

Heating problem


I doubt it.
The sensor is for the computer and the temp gauge on the dash.
If the heater hoses are getting hot, and the radiator is full of coolant, you may have a blend door problem.
The blend doors direct air thru the heater core and the vents.

Jan 08, 2013 | 2003 Volkswagen Passat

1 Answer

I have a 2003 Volkswagen Passat V6. The check engine light came on, so I ran the OBD2 diagnostic tool. It came up with the following code: P0118 Engine Coolant Temperature Circuit High Input. I called...


can be a few things, start with simple one first, flush antifreeze , add new , change thermostat ,change temp sending unit next , if that don't fix.. shoot car in the ***, just kiddin..good luck

Mar 17, 2011 | 1999 Volkswagen Passat

2 Answers

Can the green antifreeze be used in a 2002Volkswagon Passat instead of red fluid. 1.8 liter engine


I wouldn't attempt that. Stick with the fluid that the manufacturer recommends many problems can occur if you put the wrong coolant into the system.

Dec 03, 2010 | 2002 Volkswagen Passat

2 Answers

Fluctuating hot water gauge for Subaru Baja


check your coolant level, its may be low causing the fluctuatiion also the loss of heat. if its ok replace your thermostat its not regulating tempature right

Feb 27, 2010 | 2001 Subaru Forester

1 Answer

This morning it was very difficult to start my 03 Passat


VAG suffer greatly with a signal failure to ECU that brings the choke on when cold. Your fault is text book of this.

Follow the top radiator hose to where it meet the engine, at that point you will see a sensor, it has 4 wires and is held in by a horseshoe clip. This is the water coolant sensor, replace it and you'll be happy again :o)

Dec 06, 2009 | 2003 Volkswagen Passat

2 Answers

VW passat coolant warning light on


There's a level sensor plugged into the bottom of the coolant reservoir. Unplug it and clean the contacts with electrical contact cleaner. If that doesn't do the trick, replace the sensor.

Dec 01, 2009 | 2005 Volkswagen Passat

2 Answers

1992 Vw Passat DOHC 2.0 liter 16v


hi there, im thinking egr valve because of loss of power and erratic idle or the idle air control valve because it also too has the same effect

Aug 28, 2008 | 1992 Volkswagen Passat

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

240 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...