Question about 1998 Volkswagen Passat

1 Answer

1998 VW Passat 4 cylinder keeps overheating I fill the resovoir with coolant and few short trips is empty again and overheating. No apparent leaks. Checked the oil levels-normal levels w/ no water. No apparent leaks...Any suggestions for diagnosis?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 228 Answers

Replace the theremostat first.Fill system and top off after the themostat opens..check for a leaking reservoir, Then fill the radiator,if it is low,with engine running. then, pressure check the cap with a tester,or just replace with a new one,it may be cheaper just to buy a new cap. Look at the fill neck of the radiator down where the cap seals,look for any uneven sealing surfaces cracks ect.
You can also load the car in gear Automatic transmission application a bit, about 1/3 throttle, with the cap off and look for bubbles comming out of the radiator.fill the radiator while making the test with a helper,friend. If you see a bubble now and then it may be a bad head gasket or a cracked head. You can remove the plugs, and check them for anti freeze,they will have a smell of sweet antifreez,if the engine got over heated enough!

Posted on Sep 09, 2010

Ad

1 Suggested Answer

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2001 Volkswagen passat 1.8l turbo the o ring on sensor was broke so water kept leaking out got that fixed but now the car will not keep no water in the coolant resovoir tank


Is your car overheating ? Might not be related at all. Run your Passat until it reaches operating temperature and check to see if the fans behind your radiator turn on. The temperature sensor might be bad, when you replaced the O ring, did you also replace the sensor ?

Oct 18, 2015 | Volkswagen Cars & Trucks

3 Answers

Coolant reservoir empty after sitting overnight


Check the water pump and see if coolant is around it.

Jul 26, 2015 | Cars & Trucks

1 Answer

Coolant reservoir empty when sitting overnight


You must have a coolant leak. If there are no signs of a leak, you may have a gasket on the engine that has gone bad, and the coolant is being pushed out the exhaust system. The coolant expands when hot and cools when the engine cools. During the cooling stage the cooling system creates a suction on the coolant in the reservoir and draws enough coolant back into the system to keep it full. Apparently you are loosing enough coolant somewhere that the reservoir can not fill the system before going dry.

Jul 26, 2015 | 1998 Ford Windstar

2 Answers

Coolant level drops after 2miles to nothing


It may also have been low enough on coolant that one filling wasn't enough. If it is leaking you should see a wet spot or puddle under the car. Also check inside the car to see if the floormats are wet to see if maybe the heater is the source of the leak. Coolant will be sticky to the hand.
Fill the bottle again and run the engine to let it warm up to operating temp. Turn the heater on to its highest settings and the fan as well. Watch the exhaust for signs of white smoke, that is a sign of coolant being burnt off in the engine and that would be a leaking head gasket.Also keep an eye on what is going on in the water tank. If the tank empties out shortly after you start the car, refill it until it stops doing this. That is a sign there was not enough coolant in the engine.
When the engine gets hot you will see likely see bubbling in the tank and probably see thecoolant level drop. DON"T open it now. The coolant is the same temperature as boiling water. Shut the car off and let it sit for 15 minutes or so and slowly unscrew the cap. You will probably get a hissing sound at some point with some bubbling. Stop turning the cap until that stops. Then you can remove the cap and add coolant. You may have to repeat this step more than once but a cuople of times should have the system back to near normal.
Keep an eye on your temperature and water tank for a few days. If the car continues to give you heating problems or using coolant it will need to be looked at to find out the cause. Hope this helps.

May 24, 2010 | 1998 Audi A4

1 Answer

Have a 1998 Chrysler Concorde with 134,000 miles. About 2 months ago it started stalling intermitently. Would stall and I could restart immediately. Now it stalls once every trip at a certain engine temp....


your car problem is overheating, some car model like yours is designed to shut-down engine when engine temp. rise so as to avoid frying the engine. your engine overheating problem is attributed by one of these factors:
1. check or refill radiator water if less
2.check radiator cooling fan operation-if damaged pls. change or check the electrical system.
3. damage/ worn water pump-if damage pls. change the water pump.
4. check for any coolant leak somewhere the coolant line-pls. rectify the leak.
5.worn coolant reservoir cap- change if damaged.
6. clogged radiator-if clogged pls. change it.
7. damaged thermostat valve.

May 06, 2010 | 1998 Chrysler Concorde

3 Answers

Coolant consuption on vw passat tdi 2005


has it been pressure tested? do u have any coolant stains uinder the car maybe from the water pump area?

Sep 12, 2009 | 2005 Volkswagen Passat

2 Answers

Its over heats and i put water every one or two days today i notice that a white clear container by the water hose is empty and greasy


Look at the oil on the dipstick. If its milky you have a head gasket issue. Also if you can make it to a smog machine they can sniff the coolant fumes to see if gas is in the coolant. Head Gasket again. Any repair shop has a chemical that can test for gas in the coolant also.

The theory here is if your losing water and none is leaking on the ground its got to be going into the cylinder and getting pushed out the exhaust pipe.

Now if its just overheating you may have a stuck thermostat or clogged radiator or a coolang fan that dlesnt turn on when commanded by the computer.Also if its just overheating and the water lost is going on the ground somewhere then you may not have a head gasket issue.

I just did a head gasket on a Honda because as the engine was warming up the overfill bottle would fill up and overflow. The combustion pressure was leaking into the coolant and pushing the coolant out.

Jul 14, 2009 | 1998 Honda Civic

3 Answers

Oil in water resovour vw 2002 passat


Could be just the OIL COOLER. VW IS CORRECT.
If the oil cooloer fails internely you will have a mix of coolant and oil. In the engine and in the Radiator,

But not to say the other guys were wrong...

May 27, 2009 | 2003 Volkswagen Passat

2 Answers

VW Passsat - 98 -


ABS and coolant are unrelated unless there is a problem with the ECM (engine control module) or instrument panel. Is the red coolant warning sign for coolant level or temperature?

With ABS if there is any failure with any brake electronic component (sensor, motor, or fluid level etc) the ABS will shut down completely and flash the light. If the light is on or flashing the ABS is non functioning.

I need better information on the coolant and ABS to give better information.

Nov 01, 2008 | 1998 Volkswagen Passat

Not finding what you are looking for?

Open Questions:

See all 1998 Volkswagen Passat Questions

1998 Volkswagen Passat Logo

329 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

yadayada
yadayada

Level 3 Expert

76164 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...