Question about 2004 Volkswagen Golf

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Have 04 golf 2.0 ck engine light on code p2181 put new water pump new temp sensor light still on not running hot car running fine what else can it be

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Sensor may be bad

Posted on Apr 01, 2011

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Hi, Car will start fine and runs perfect, however after a long run (1/2 hour or more) wont start straight away wait 10 mins and away it goes, turns over fine just doesn't fire


Loss of spark ? CK coil or coil pack or ignit relay. Any CK engine lts? coolants sensor or temp sending unit.? Is it running hot?

Sep 04, 2015 | 2003 Hyundai Santa Fe

2 Answers

High coolant temp


It is possible, how ever, I would check for inop coolant fan, or restricted radiator. If parts of the radiator are cool to the touch when the coolant fan has kicked in, very possibly resricted flow of coolant through the radiator.

Nov 09, 2011 | 2005 Scion xA

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

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

Check Engine Light - P2181


Hi,first thing your cambelt and tensioner should have been replaced 13k miles ago,it would pay you to replace the water pump at the same time as they are known for impellor failure = cooling system fault=P2181 code,hope this helps.
Darren

Aug 06, 2009 | 2003 Volkswagen Golf

1 Answer

RUNS GOOD STALLS AT DIFFERENT TIMES; ae. STALLS HOT OR COLD


when you removed the water pump, did you disturb the timing in anyway ???

Jun 21, 2009 | 1992 Oldsmobile Cutlass Ciera

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

CEL is ON. OBD code P2181. I already replaced the ECT 3 mo ago due to OBD code P0118.


P2181 is a overheating engine.  
Can be:
Bad fan themoswitch, temp sensor themostat water pump impeller fan motor or fuse on battery
check to see if fans work by turning on Air Conditioner (fans should run with A/C on). Turn A/C off, warm engine, check to see if fans come on, if they do NOT it may be thermo switch on radiator on lower left side, has 3 wire plug, takes 1-1/8" wrench/socket to remove.  This thermo switch controls fans when temp reaches 195F, if fans do not come on at engine temp 190-195F try  replace switch VW part number: 1J0-959--481-A  You can verify if the switch is bad by shorting wire 1 and 2 (fans should come on when jumpered).

Oct 15, 2008 | 2002 Volkswagen Jetta TDI

1 Answer

94 4.6 deville coolant hot,eng hot ,limp mode


pull codes from on board diagnostics turn key on not running press and hold hot button on temp and off at same time till dash lights up write down codes respond with all computer codes i will help you determine prodlem and try to fix

Aug 21, 2008 | 1995 Cadillac DeVille

1 Answer

Volkswagon golf


Ive experienced something like that when the "Heater" under the dash is blocked!
(jseidlich yours sounds more like a broken Temp.sensor;)

Jul 31, 2008 | 1996 Volkswagen Golf

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