Question about 1994 Volkswagen Golf

2 Answers

1994 2.0l golf devil car

I have many problems so here goes
1. the car takes a very long time to heat up had the thermostat changed the fan works it just takes forever for it to go on.
2. the lights on the dash work when the feel like it
3. cant get the radio to go into safe mode nothing appears
4. oil light goes on and makes this beeping noise that makes me want to just crash the car around 2000 rpms then if i step on the gas it goes off
5. the engine light is on
cant pass emissions these are my readings im guessing its o2 sensor
ASM2525 TEST curb idle test
limit reading limit reading
HC ppm 66 192 fail 200 247 fail
CO% 0.37 3.61 fail 1.00 5.99 fail
NO ppm 505 15 pass

6. also the hose at the top of the rad feels like its only got air in it im not sure if its suppose to be filled with coolant or what?

any help would be greatly appreciated thank you

Posted by on

  • 6 more comments 
  • dj_shane007 Oct 29, 2008

    an exorcism might help :)

  • dj_shane007 Nov 01, 2008

    i actually dont know how to bleed the system but thank you for all your help i will try that as soon as i can

  • dj_shane007 Nov 05, 2008

    anyone know how many o2 sensors are in this car? 1994 vw golf 2.0l gl

  • dj_shane007 Nov 05, 2008

    i was trying to bleed the coolant but i read that with these cars that the proper way is to pull the top rubber hose off the rad and fill it there to get the air out is that true or silly? and another thing does anyone think the o2 sensor will drop my numbers enough to pass emissions? or are they high enought there is likely something else?

  • dj_shane007 Nov 05, 2008

    --------------ASM2525 TEST -----------------curb idle test
    --------------limit/ reading--------------------- limit/ reading
    HC ppm --66 /192 fail ----------------------200 /247 fail
    CO%-----0.37/ 3.61 fail --------------------1.00/ 5.99 fail
    NO ppm 505 /15 pass
    these are my emissions readings

  • Anonymous Dec 16, 2008

    i have the same problem. is it essential to put "anit-seize" onto the threads?

    I have a VW Cabrio 1996. Its very similar to the Golf, so i assumed it only had one sensor.

  • Curt Downs May 11, 2010

    Stay away from the devil car on Oct. 31.

  • yadayada
    yadayada May 11, 2010

    Have you tried a priest?



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Volkswagen Master
  • 1,779 Answers

Oxygen will feed fire, especially in a devil car, so u only have one O2 sensor, located under the devil car, passenger side, below seating area, in front of the catalytic converter, mounted in the exhaust pipe.

Posted on Nov 05, 2008

  • Curt Downs Nov 06, 2008

    dj_shane007, here's some info on 02 sensor, hope it helps

    xygen Sensor
    Volkswagen Golf/Jetta/Cabriole 1990-1999


    Apply an antisieze compound to the threads of the oxygen sensor before reinstalling it
    Use an oxygen sensor socket or an open end wrench to remove the sensorThe
    oxygen (O2) sensor is a device which produces an electrical voltage
    when exposed to the oxygen present in the exhaust gases. The sensor is
    mounted in the exhaust system, usually in the manifold or a boss
    located on the down pipe before the catalyst. The oxygen sensors used
    on many VW models are electrically heated internally for faster
    switching when the engine is started cold. The oxygen sensor produces a
    voltage within 0 and 1 volt. When there is a large amount of oxygen
    present (lean mixture), the sensor produces a low voltage (less than
    0.4v). When there is a lesser amount present (rich mixture) it produces
    a higher voltage (0.6–1.0v).The stoichiometric or correct fuel to air
    ratio will read between 0.4 and 0.6v. By monitoring the oxygen content
    and converting it to electrical voltage, the sensor acts as a rich-lean
    switch. The voltage is transmitted to the ECU.

    A portable, hand held, oscilloscope can be purchased through professional tool suppliers and makes a great diagnostic tool.

    1. To
      test the oxygen sensor, do not disconnect the wiring harness but insert
      a back-probe or other devise such as a paper clip into the rear of the
      wiring harness at terminal # 4 on 93–99 VW's. This wire is the signal

    2. Using a Digital Volt Ohm Meter (DVOM) measure the oxygen
      sensors output by connecting the positive lead of the DVOM to the #4
      terminal and the negative lead to a good ground.

    3. Make sure all testing equipment is clear of any moving parts and then start the vehicle.

    4. Within
      a few minutes the oxygen sensor should begin producing voltage. At idle
      this reading should be between 0.3 and 1.0 volts. The reading should

    5. If the oxygen sensor output is out of range, you
      will have to test the sensors heating element. This can be accomplished
      by turning the engine off and disconnecting the four (4) pin harness.

    6. Perform
      a test for battery voltage at terminals one (1) and two (2) of the
      connector. This once again must be performed with the engine running.
      The resistance should be approximately 2 ohms.

    7. If the oxygen sensor signal is not as specified, replace the sensor.

    1. Disconnect the negative battery cable and place it away from the battery's post.

    2. Detach the oxygen sensor electrical wiring harness.

    3. Using
      a oxygen sensor socket (sold at most parts warehouses) of a closed end
      wrench of comparable size, loosen the sensor from the exhaust.

    4. Remove the oxygen sensor from the exhaust.
    To install:
    The sensor is threaded into the catalytic converter or the exhaust pipe with an anti-seize compound on the threads.

    1. To install simply thread the sensor into the exhaust and tighten.

    NOTEWhen replacing it, be careful not to get anti-seize in the slots of the outer shield. Tighten to 37 ft. lbs. (50 Nm).


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.


    An expert whose answer got voted for 20 times.

  • Expert
  • 84 Answers

Let's start with air in the hose. When you changed the thermostat you have to bleed the system to remove this air. IF you don't the thermostat won't ever come on. The air pulsing in the hose IS NOT NORMAL. Do you know how to bleed the system??

The oil light. First check if the oil level in the car is good. If yes check the oil pressure. You need a gauge. Make sure to simulate the problem and test the pressure when the light comes on. If the pressure is good 2 options. First defective oil pressure switches very cheap to replace. sometimes you can even buy lower pressure ones that won't make the light come on. OR the oil grade is too thin. Try a 10w30 instead of 5 w30 thicker oil will cause less drop in hot oil pressures.

The cluster lights. Most probally a bad connection in the cluster. Losts of " A3 " body clusters were able to be repared but you need to do it right. It is printed board.

The radio. Check and find the radio fuse. Under the steering wheel a little to the left. If the radio fuses are good check for power and ground at the radio. If all is good radio needs to be replaced as the face probally got loose.

For the engine light have a garage pas a scanner cause it can be related to alot of things other than an O2 sensor. You'll save money by knowing what it is and not guessing.

Posted on Oct 31, 2008

  • helpyou Nov 01, 2008

    Few ways to do this. First is the garage method with an actual vacuum that pulls all air out and creates the hoses to collapse. Once vacuum is obtained we close the valve on the pump and fill the closed system with coolant.

    The DIY way is to open the reservoir bowl cap. Start the car. Let it run with no cap until the lower radiator hose begins getting hot. The upper hose will get hot first. Basically when the lower hose gets hot this is a sign the thermostat is opening. When you feel the lower hose heating up add coolant to the fill line and little above in the bowl. And reinstall the radiator cap making sure the seal in the cap is not twisted or deformed. This is also a cause for overheating as the cap doesn't build pressure. If you have alot of air the coolant might overflow while you are trying to do this so be extremely cautious not to get burned and watch the temperature. If you see the lower hose is not heating but coolant is bubbling hot out of the bowl shut off the car and let it rest. Air will escape at this time and the engine will cool. Might take a few attempts to get all the air out. If the air keeps bubbling in the upper hose keeps bubbling and you cannot get the air out might want to have a professional try because sometimes we have other related problems like head gaskets and the air is just continiously created and impossible to bleed.



1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

What's your problem?vw citi golf 1 tem. gauge not working car dont over heat

It is likely the coolant is not reaching operating temperature, please verify the engine thermostat is working.

Jun 06, 2012 | Volkswagen Cars & Trucks

1 Answer


To testy a thermostat remove it and put it in boiling water it should open.

The golfs have a very comon problem of building up air and then they over heat, make sure the little pipe on the left top side of the radiator isnt blocked, and do the same where the little pipe goes into the water bottle if these are blocked it will build up air and over heat.

Feb 10, 2011 | 1986 Volkswagen Golf

1 Answer

Have a 04 golf 2.0 with a CEL on; code: P2181. Engine doesn't run hot, plenty of fluids, suspect either a temp sensor or a thermostat. Is it safe to drive if it runs well otherwise?

P2181 - Performance Malfunction in Cooling System
Possible Solutions
* Check Engine Coolant Temperature Sender (G62)
* Check Coolant Thermostat
* Check Engine Cooling System
o Put the key on, fan speed on 1, and push the a/c switch. Are both fans kicking on? If not, you found the problem.
o Put the key on and fan speed on 1. Does heat come out readily from the vents?
+ No. Probably the water pump is gone.
+ Yes. Probably the thermostat is gone. good- luck!!

Aug 01, 2010 | 2004 Volkswagen Golf

2 Answers

Car overheating, fan not kicking in, changed fan switch, but fan still not working, have checked the fan and all seems to be ok, what else could the problem be, thermostat or something else? Top pipe...


Jun 09, 2010 | 2000 Volkswagen Golf

1 Answer

Vw polo 2002 heat gauge goes rite up and sometimes down to 0

hi is the water flowing through the engine ie radiator blocked, water pump. regards

Feb 01, 2010 | 2002 Volkswagen Golf

1 Answer

2003 vw golf over heating no heat coming from heater fluid is ful

it has 2 get up 2 the themastat temp before fan works,hot air blows threw heater if not a curciut breaker for fan or motor on fan is bad.. system needs 2 be flowing water pump should be, with belt turning

Aug 30, 2009 | 2003 Volkswagen Golf

1 Answer

When I excelerate or stop for a long period of time my car starts over heating, what do you think the problem is?

It could be a faulty: 1-Radiator fan, Check the fuse. 2-Bad Thermostat, Change the Thermostat 3-Weak Water pump, Change the Water Pump.
Easiest thing to do is see if the fuse to the Electric radiator fan is bad. If it's good, then start up the car and see if it goes on when the temperature starts to get hot. I think the fan activates around 190". If the fan does not turn on, check for lose wires and bad grounds to the electric motor. Take caution, fan may activate without warning.
If the electric fan works good, then change the Thermostat. It may have failed and stuck in the shut position. After changing the Thermostat and problem still there, good chances are that it's the Water pump that may be faulty.
Before you go all though that trouble, check the Antifreeze level, make sure you have lots in there and just don't look at the radiator antifreeze reservoir. Look in the filler cap and the radiator cap. The plastic can become stained making it look like it is full but it's really empty.
Good luck and hope this help. Oh don't buy any radiator flush, it may clean up any dirt that my be plugging up any holes in the system, you do have a 6 year old car.

May 11, 2009 | 2003 Kia Spectra

1 Answer

Car engine over heating and radiator fan doesn't come on.

its best if you use an AIC controller or change the radiator if the problem presists then it should work fine

Jan 26, 2009 | 1999 Volkswagen Golf

1 Answer

1986 VW Golf GTI 1.8 SOHC cooling issues, and heater blows cool

try changing cooland temp sender,your heater matrix maybe blocked(common)what temp is it running at have you checked it with a gauge?

Dec 22, 2008 | 1986 Volkswagen Golf

1 Answer


if you have a 2.0 you check your water pump.. they have plastic impellors on the water pump and frequently break, I have seen many that wont heat up too much while idling with a/c off but will overheat going down the road, the problem is that where the impellor connects to the waterpump shaft cracks and works somewhat until you accelerate the engine, which causes more pressure and will make the impellor to start slipping.

Aug 19, 2008 | 2000 Volkswagen Golf

Not finding what you are looking for?
1994 Volkswagen Golf Logo

625 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

78267 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

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

Answer questions

Manuals & User Guides