Question about 2002 Volkswagen Jetta TDI

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The glow plug icon is flashing yellow on my 2000 vw beetle diesel tdi. What problem does that indicate? I also do not have use of the cruise control and the car brakelights do not work.

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Check & replace if necessary the brake pedal switch!

Posted on Aug 27, 2010

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I have a 2000 Jetta diesel. Can you tell me where the plug for the block heater is? If indeed there is one.


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_180.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.




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Jan 23, 2011 | 2000 Volkswagen Jetta TDI

2 Answers

Glow plugs light flashes on dashboard when driving golf estate mk4 diesel


The glow plug light in VW cars are telling you you have a fault not with the glow plugs but with the engine management.Get a garage to do a diagnostic check for you.

Dec 30, 2010 | Volkswagen Golf Cars & Trucks

1 Answer

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

3 Answers

2000 Jetta TDI: How do I change spark plugs on 2000 VW jetta 2.0...


You're in the TDI (diesel) solutions section so it uses glow plugs.
If it's a petrol engine 2.0L then it would be accessible above and below intake manifold using a swivel spark plug deep socket.

May 16, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

I have a vw bora 1.9 tdi and the heater plug light has started flashing and the car says engine workshop


There are a number of different causes of this problem. Check all glow plugs. Check glow plug relay. If both are ok....This may seem unusual...Check the brake light switch situated at brake pedal. A faulty brake light switch will cause the glow plug light to flash
Good luck with it
John

Oct 01, 2009 | 2000 Volkswagen Jetta TDI

2 Answers

The glow plug light flashes while the engine is


this means you most likely have a burnt out glow plug or glow plug timer control or both

Mar 18, 2009 | 2001 Volkswagen Jetta TDI

1 Answer

NO POWER TO GLOW PLUGS


I have a '98 Jetta diesel that had problems with the glow plug circuit. I ended up replacing the harness and a fuse. All the information I needed to know I found on this web page:

http://www.tdiclub.com/

You will have to sign up to post questions, but it's free. I've had many other problems as well and found the experts there very willing to work with you.

Tom

Mar 13, 2009 | 2000 Volkswagen Beetle

3 Answers

Volkswagen Diesel


according to haynes beetle repair the code is turbocharger boost pressure control valve positive deviation. to trouble shoot
check the wiring, connecting pipes.using a hand held vacuum pump apply vacuum to the wastegate actuator,(with engine not running) check the actuator arm and lever for freedom of movement , disconnect the electrical connector from the boost pressure control valve. using an ohmmeter check the solenoid windings for an open circuit, the boost pressure control valve should measure about 25 to 35 ohms if excessive resistance or open circuit is indicated replace control valve.
a scan tool is required for a complete diagnosis of the system control circuits some may be rented from a local auto repair store hope this helps and norrows it down for ya

Jun 16, 2008 | 2002 Volkswagen Beetle Turbo S

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