Overheating issue

Asked by Jul 04, 2011 at 10:31 PM about the 1970 Volkswagen Beetle

Question type: Maintenance & Repair

My 70 beetle is overheating. I know that the oil is important in the older bugs, so I make sure the oil level is where it's supposed to be and I get regular oil changes. My oil light flashes when my car starts getting hot, and about 10 minutes after the light starts flashing, my car dies. I can start it back up after a while and drive it for 15-20 minutes before it does the same thing again. Is it my cooling fan going out or what else could be wrong?

5 Answers


get new coolant fluid, start the car and watch the engine, if the fan stops you know there is a problem with the fan. however you prob. just need new coolant

1 of 1 people found this helpful.

It make no sence to check the antifreeze fluid , Because this is an aircooled engine.First you shoul check your engine oil,2nd check the air deflectors between the piston skirt and the pushrod tubes.Those are for mmore eficency in the cooling system.3rd check the turbine to be free of obstructions.Last check that the generator belt have 1/2 inch of clearance that it should have.Good luck!!

1 of 1 people found this helpful.

the oil light is turned on by the oil sending unit. this sending unit is usually set to turn the light on at around 7-10 psi. some replacement senders are a little higher, some lower. the oil light flickering at idle is NOT uncommon, and does NOT mean you have any problems. does the light go out when you slightly rev the motor? if so, you may NOT have a problem at all. here's a good place to start. go to the store and buy a meat thermometer. one of the ones with the long stick on it. now run the car until you think it's overheating. now turn off the motor, get out and go back to the motor, pull out the oil dipstick, and insert the thermometer. let it set there a minute or two, and see what the highest reading is. if your below 230 degrees your fine. between 230-240 your borderline, over 240 your hot. report back what you find. for reference, the cooling fan is inside the fan shroud and attached to the back of your generator/alternator. the gen/alt is turned by the belt running from the crank up to it. if the belt is very loose it can slip and cause the fan not to turn as it should.

2 of 2 people found this helpful.

hi under the crank case there will be two oil pressure release valves one at the front other at the back they should have flat head screw to them if these are not working it may cause this problem

1 of 1 people found this helpful.

If you really want to control over heating issues, get an oil cooler. I had one on my old bug and worked like a charm.

Your Answer


Looking for a Used Beetle in your area?

CarGurus has 9,106 nationwide Beetle listings starting at $1,750.


Volkswagen Beetle Experts

  • #1
  • #2
    Chris Billings
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Ford Mustang
278 Great Deals out of 38,263 listings starting at $1,995
Used FIAT 500
88 Great Deals out of 3,786 listings starting at $2,900
Used Toyota Corolla
663 Great Deals out of 65,393 listings starting at $1,599
Used Chevrolet Camaro
252 Great Deals out of 29,972 listings starting at $4,980

Used Cars For Sale

2018 Volkswagen Beetle For Sale
3,864 listings starting at $14,999
2017 Volkswagen Beetle For Sale
3 Great Deals out of 909 listings starting at $12,499
2016 Volkswagen Beetle For Sale
12 Great Deals out of 377 listings starting at $10,400
2015 Volkswagen Beetle For Sale
15 Great Deals out of 505 listings starting at $8,720
2014 Volkswagen Beetle For Sale
26 Great Deals out of 539 listings starting at $7,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.