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2003 beetle codes P2181 & P2182 - 2004 Volkswagen Jetta

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Start with ECT sensor. If fault returns, replace thermostat

Posted on Dec 03, 2017

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SOURCE: jetta 2003 2l fault code p2182

P2181 Cooling system performance

Check Thermostat operation & Temp sensor for ECU. CHECK ENGINE CCOLANT TEMP SENSOR IN WATERHOSE, NORMALY A 4 PIN PLUG. ON SENSOR SELF PIN 1&3 OR C&D AT 0 degrees
5000-6500 ohms,60 degrees 530-675 ohms,90 degrees
200-275 degrees

Could also be the cooling fans - I've heard of fixing it by replacing the fan motor and clearing the code as well. The easy fix seems to be the coolant sensor though - I've seen several online threads where owners cleared this code by changing that sensor.

Posted on Aug 07, 2008

  • 11 Answers

SOURCE: Hi, 2003 Beetle / reset - clear faults

Im actually going through the process of fixing this problem with my car. the P2181 is a performance cooling error, usually brought up by thermostat, radiator issues, or ECT sensor. You should narrow it down and check both radiator and thermostat to prevent later issues. If all is well go to your local autozone, pep boys, checkers..etc. and have them erase the DTC error. If you are looking for a more long term solution you can purchase many different software such as VAG-COM or any other software used to run test on vehicals. Be sure you know what you are doing though because messing with your cars computer can have long term effects that can be pricey.

Posted on May 16, 2009

  • 11 Answers

SOURCE: 03 beetle has chack engine light and the code is P2181

the p2128 code is a Performance Malfunction in Cooling System error and comes from a faulty ECT sensor, radiator issues or a bad thermostat.

Posted on May 16, 2009

  • 181 Answers

SOURCE: CHECK ENGINE LIGHT IS ON AND SO IS THE AIR BAG LIGHT

I recommend taking your car to your local auto parts store like AutoZone. They will hook up their diagnostic computer free of charge and generate your error codes. They can also decode the codes and tell you what may be the proximate cause. Same thing the VW Dealer will do for a charge of $65 (but AutoZone is FREE). One of the codes probably relates to a bad seal on your gas cap (try removing, cleaning and replacing). One of the other codes might be indicative of a bad oxygen sensor. They cost $20+, so you want to be certain before you start a replacement. There are between 2-3 oxygen sensors on your car.

Sorry I couldn't be more descriptive.

Posted on Jul 14, 2009

MNfisherman
  • 11896 Answers

SOURCE: I have a 2004 VW Beetle. I keep getting the engine

Trouble Code: P2181

Cooling System Performance Malfunction
Possible Causes:


ECT sensor has failed ECT Sensor (on Radiator) has failed ECT sensor signal circuit is open (inspect wiring & connector) ECT sensor signal circuit is shorted Cooling system malfunction, or the thermostat is stuck Engine not operating at normal operating temperature EOT sensor is damaged or it has failed

Posted on Sep 28, 2009

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Engine Diagnostic code P2181 Volkswagen passat 2005.. PLEASE HELP!!! I'm going nuts over this issue!!!!


I don't see why

I just spend 15 seconds using google
& found pages of info on P2181 & VW's

Mar 08, 2013 | Cars & Trucks

3 Answers

I have a 2004 VW Beetle. I keep getting the engine diagnostic code P2181. This code is not in my manual. What is it?


Trouble Code: P2181

Cooling System Performance Malfunction
Possible Causes:


ECT sensor has failed ECT Sensor (on Radiator) has failed ECT sensor signal circuit is open (inspect wiring & connector) ECT sensor signal circuit is shorted Cooling system malfunction, or the thermostat is stuck Engine not operating at normal operating temperature EOT sensor is damaged or it has failed

Sep 28, 2009 | 2004 Volkswagen Beetle

1 Answer

2181 code ecl on radiator fans dead


CODE P2181 COOLING SYSTEM PERFORMANCE MALFUNCTION CONDITIONS - ECT SENSOR HAS FAILED. 2.0L ENGINE ECT LOCATION IS ON THE UPPER RADIATOR HOSE CONNECTION AT THE REAR OF THE CYLINDER HEAD. 2.5L ENGINE ECT IS ON THE UPPER RADIATOR HOSE CONNECTION ON THE CYLINDER HEAD ALSO.CHECK COOLING FAN FUSE AND RELAYS

Jul 26, 2009 | 2003 Volkswagen New Beetle Convertible

1 Answer

P2181 code pulled. Driver side A/C fan not


The fan assy does come out of there. It's definitely a DIY job. I believe it's just 3/4 screws and the wiring harness. I had to replace a fan about a year ago and it was pretty simple, aside from there not being enough room in there for my hands. I believe the screws are T25 or T20 torx screws. Failure of a fan is pretty common on the MKIV VW's...

Jul 16, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

CHECK ENGINE LIGHT IS ON AND SO IS THE AIR BAG LIGHT


I recommend taking your car to your local auto parts store like AutoZone. They will hook up their diagnostic computer free of charge and generate your error codes. They can also decode the codes and tell you what may be the proximate cause. Same thing the VW Dealer will do for a charge of $65 (but AutoZone is FREE). One of the codes probably relates to a bad seal on your gas cap (try removing, cleaning and replacing). One of the other codes might be indicative of a bad oxygen sensor. They cost $20+, so you want to be certain before you start a replacement. There are between 2-3 oxygen sensors on your car.

Sorry I couldn't be more descriptive.

Jun 30, 2009 | 2003 Volkswagen New Beetle Convertible

1 Answer

Hi, 2003 Beetle / reset - clear faults


Im actually going through the process of fixing this problem with my car. the P2181 is a performance cooling error, usually brought up by thermostat, radiator issues, or ECT sensor. You should narrow it down and check both radiator and thermostat to prevent later issues. If all is well go to your local autozone, pep boys, checkers..etc. and have them erase the DTC error. If you are looking for a more long term solution you can purchase many different software such as VAG-COM or any other software used to run test on vehicals. Be sure you know what you are doing though because messing with your cars computer can have long term effects that can be pricey.

Apr 28, 2009 | 2003 Volkswagen New Beetle Convertible

1 Answer

I have a 2003 vw beetle 2.0 and I went to Advance when the check engine light came on. The diagnostic tester said its a P2181 which I found out was a coolant temperature sensor warning, so I paid some...


The ECT sensor is right below the air compartment on the drivers side of the engine compartment. it is sticking up and should have some green on it. I don't have a picture right this moment but i will post one tomorrow. Also the P2181 error code is a Performance Malfunction in Cooling System. It can all be the radiator and or thermostat.

Apr 08, 2009 | 2003 Volkswagen Beetle TDI

1 Answer

03 beetle has chack engine light and the code is P2181


the p2128 code is a Performance Malfunction in Cooling System error and comes from a faulty ECT sensor, radiator issues or a bad thermostat.

Mar 20, 2009 | 2003 Volkswagen New Beetle Convertible

1 Answer

Jetta 2003 2l fault code p2182


P2181 Cooling system performance

Check Thermostat operation & Temp sensor for ECU. CHECK ENGINE CCOLANT TEMP SENSOR IN WATERHOSE, NORMALY A 4 PIN PLUG. ON SENSOR SELF PIN 1&3 OR C&D AT 0 degrees
5000-6500 ohms,60 degrees 530-675 ohms,90 degrees
200-275 degrees

Could also be the cooling fans - I've heard of fixing it by replacing the fan motor and clearing the code as well. The easy fix seems to be the coolant sensor though - I've seen several online threads where owners cleared this code by changing that sensor.

Aug 07, 2008 | 2003 Volkswagen Jetta TDI

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