Question about Volkswagen Polo

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Coolant light wont go off

Have an '06 Polo Dune 1.4 tDi, the coolant light comes on after starting, used to go off now on every time, coolant is perfect, engine does not overheat and when it was in for a service they didn't find anything, 80k on the clock all other lights fine, power steering came on last week but stopped after 2 mins and has not reappeared! don't know what it could be, any help would be great11

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 135 Answers

SOURCE: 91 toyota 4x4 22re overheats on highway, but not at idle.

original issue sounded like thermostat but now that you have lost power i would have to say thermostat, blown head gasket, and warped head

to check thermostat find and remove place in pot of boiling water the see if it opens, then to ice water to check if closes.


the only way i know to check headgasket and head is to check oil and water. oil will have water in it, and water iw have oil in it

Posted on May 04, 2009

ElDopa
  • 295 Answers

SOURCE: 02 VW Polo 1.2 steering wheel warning lights on

Red this article:

Eventhough the level is right, the fluid might need replacing (every 3~5 years and 50.000-100.000 miles).

You can read how to recognize bad/old fluid here: http://www.hondaclub.com/forum/articles/1492-power-steering-fluid-lifeline-your-steering-system.html

Posted on Aug 25, 2009

Testimonial: "good spot on advice "

BRADLEYFRANC
  • 104 Answers

SOURCE: VW Polo Steering wheel warning lights went on

If its the electronic unit,check the main fuses near the battery,also check the wiring connectors at the powersteering pump for loose or corroded plugs.If alls ok,you will need a diagnostic machine to read out what trouble codes are in the units memory.good luck.

Posted on Sep 16, 2009

Testimonial: "good spot on advice, he surely know wat he is talking about, not some robotic answer.nice one"

fingaz22
  • 1068 Answers

SOURCE: have 95 saturn sl with code 26 and 27 quad driver

well the quad driver may not be at fualt and most likely is not.

there is a fualt line that the computer uses to monitor for fualts but the thing is one line monitors four different things and the code is to get you in the general area but not to the exact fualt. so from here you need to test for failed components. that code and the quad driver monitors the a/c , evap solniod , egr solenoid and coolant fan relay. the fan relay and egr are the most common i see all the time. and with you having an isssue with that coolant light i want to say check the fan circuit.

let me know if you have more question thank you and good luck

Posted on Nov 26, 2009

Testimonial: "Thanks I'll check those circuits,but could not find a test for the egr module,but did find for linear egr valve."

  • 714 Answers

SOURCE: The "engine power is reduced" light comes on

po455 is Probable Cause[s]

1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.

Posted on Feb 27, 2010

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2005 Polo 1.9 TDi,water light keeps coming on after reaching 120km/h. Water pump,Water bottle+cap,heater sensor has been replaced,after vw dealer said it could be problem,but still having same issue..


What does the radiator coolant temperature gauge show when you have this condition? For example is the gauge sitting around the 8/10ths level or is it lower?

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2005 vw polo 1.9 tdi wont start


if it starts when you pour fuel in the intake.. then fuel is not reaching the tbi from the tank..you say you put a new fuel pump on this..did you bleed the fuel lines? if not do this because there is an airlock in those lines..either you need to open a fuel line at the tbi unit to bleed it all out.. or be looking at a clogged up fuel filter..

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At this LINK you will find a professional grade video of the whole job of replacing the timing belt.

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Where are the three glow plugs that are used for the heater/cooling located on an 02 vw jetta 1.9L tdi?


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_102.jpg
The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.

Dec 16, 2010 | 2002 Volkswagen Jetta TDI

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Yep! Blown head gasket.

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Exhaust gas warning light on. Took to garage who hooked it up to their computer. Over heating but fan comes on so mechanic said no problem. Petrol seems to have gone down quickly on short journey. Engine...


just because the fans come on that doest mean that there is no problem if your thermostat is not operating correctly this could make your engine over heat also while your at flush yout coolant system really good.

Nov 12, 2009 | 2006 Volkswagen Golf

1 Answer

Vw polo 1.4 tdi idle problem


Hey.. i just had this exact problem in my GTI and after 2 weeks of trial and error, I had to replace my Coolant Temp Sensor.. it was bad so it threw off the fuel metering valve which was part of the crazy idling problem.. I cant be 100% sure because our cars are not exactly the same but I mean we have the EXACT same symptoms so .. justa suggestion. Use the VAG-COM sensor reader and you'll be golden.

Mar 15, 2009 | 2001 Volkswagen Golf

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