2003 vw jetta 1.8t High revving and loss of power

Question moved from Spanish car maker 'Seat' to Volkswagen Jetta.

Volkswagen Jetta (2006) - fuse box diagram - Auto Genius

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Sept 23, 2019 - Instrument panel ; 32, Fuel Injectors (gasoline), 10 ; 32, ECM (diesel), 15 ; 33, Headlight washer system, 20 ; 34, Engine control elements, 10.

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  Volkswagen Jetta (2003 - 2009) - fuse box diagram - Auto ...

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  Jan 28, 2020 - Volkswagen Jetta (2003 - 2009) - fuse box diagram. Year of production: 2003, 2004, 2005, 2006, 2007, 2008, 2009 ...

2006 Jetta Fuse Box Diagram in 2021 - Pinterest

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2006 Jetta Fuse Box Diagram Volkswagen Jetta 2008, Vw Jetta Tdi, Jetta Wagon,. T. Tyrese. More information. Volkswagen Jetta 2008 · Vw Jetta Tdi.

If the engine is revving up then i'd say you likely have a vacuum leak, or the cars' high-idle setting is stuck on. If this is just the rev counter and the engine idles like normal, that I would guess that the rev counter is getting a bad electrical signal from somewhere and would require checking a wiring diagram at the least.

As far as I know spark plugs only have a metal type washer to seal, and there is no other oil seal needed. I have know oil to leak from rocker cover and fill spark plug wells, but tis also often covers engine. Burning oil smell couldbe from oil going onto the outside of hot engine. Check oil loss via dip stick. Clean all oil from outside engine to find out sites of leaks. Hope this helps.

yes- check your oil level - sounds like they didn't fill completely or something is loose and leaking oil out

THE 5 SPEED AUTOMATIC TRANSMISSION

At the bottom of the automatic gearbox (tiptronic) you will find one threaded plug on below surface, (follow red arrow in the picture below). This is for emptying.




The oil level threaded plug is placed on the car front lateral automatic gearbox surface, (follow yellow arrow in the picture below).



The filling oil plug is placed on the upper automatic gearbox surface, (follow green arrow in the picture below).


Automatic Transmission Fluid (ATF) checking:
1. Requirements for check:
1.1. Vehicle standing on level surface.
1.2. Transmission must not be in fail-safe mode.
1.3. Shift lever in "P" position, parking brake applied.
1.4. Engine idling.
1.5. Air Conditioner and heater OFF.
1.6. ATF temperature must not exceed 104 Fahrenheit degree (40 Celsius degree) at start of test.
1.7. Automatic gearbox oil capacity: 2,5 liter. Only ATF with VW designation may be used. Do not use any lubricant additives.
1.8. Automatic Transmission Fluid ATF - part number: VW G 052 990 A2
1.9. An ATF level check when transmission oil temperature is too low results in overfilling, when too high results in underfilling.
2. CAUTION: Too much or too little ATF will affect the operation of the transmission. The ATF level must be checked at regular intervals.

The most likely cause is loss of power assistance to the braking system which means you will need to apply increased brake pressure to compensate for the loss of assistance.

The problem will be with the brake servo assist. It is possible there is a leak in the brake servo assist system, which reduces the vacuum, so you are not getting sufficient mechanical assistance when applying the brakes.

It is unwise to be driving the car with this condition. If you lose all power assistance to the brakes, which could easily occur with this fault, the pedal will become very hard, you will need to apply very high pedal pressure and the vehicle will be very difficult to stop. You need to take the car to a VW dealer for service or to a competent brake specialist in your area to inspect the system and rectify the fault.

VW did a recall on some earlier year models for a leaking brake servo and I understand the problem was a faulty vacuum hose which would fail and leak. I am not aware of any recall for this item on later models like your 2004 vehicle.

All the best.

If there is no oil leak from the steering rack,check the first power steering oil pump.But if the steering wheel doesn.t turn at all-change steering rack.

Gasket need replacing and New Spark Plugs (NGK Orginal). May need Coils! If any, replace all at once, My 2000 Passat Wagon runs Great, 1,8T Wagon!

You've lost engine coolant somewhere, and need to fill the engine back up with the VW special G12 coolant.

Then find the leak, which will be in one or more of the following places -
Water hoses to heater core, including any other coolant carrying hoses in the engine compartment
Radiator hoses
Plastic manifold bolted to side of engine which is known to leak (have replaced on an '01 VW Beetle, and an '02 Jetta, both members of our family in the past few years.).
Overflow reservoir cracked
Radiator leak.

Reply back what you find. If the engine got too hot, you may need to have the thermostat replaced.

I had the same symptoms and found I had suffered from turbo failure and the final cost at the dealer was $3500, last VW I will ever own. I hope this isn't your trouble too, good luck