2004 Volkswagen LT Bus emission

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Condition	Value

expand_moreDiesel exhaust gas values

expand_moreCut-off control speed


All Volkswagen diesel straight-5 2.5 Liters AGX engines	4500–4900 rpm4500–4900 rpm4500–4900 rpm
All Volkswagen diesel straight-5 2.5 Liters ANJ engines	4650–4850 rpm4650–4850 rpm4650–4850 rpm
All Volkswagen diesel straight-5 2.5 Liters AVR engines	4500–4700 rpm4500–4700 rpm4500–4700 rpm
All Volkswagen diesel straight-4 2.8 Liters AUH engines	4300–4500 rpm4300–4500 rpm4300–4500 rpm
All Volkswagen diesel straight-4 2.8 Liters BCQ engines	4300–4500 rpm4300–4500 rpm4300–4500 rpm
All other modifications	4400–4800 rpm4400–4800 rpm4400–4800 rpm


Diesel conditioning gas injections	10
From 60° C engine oil temperature

expand_moreDiesel conditioning speed


All Volkswagen diesel straight-5 2.5 Liters AGX engines	4500–4900 rpm4500–4900 rpm4500–4900 rpm
From 60° C engine oil temperature 10 gas impulses
All Volkswagen diesel straight-5 2.5 Liters ANJ engines	4650–4850 rpm4650–4850 rpm4650–4850 rpm
From 60° C engine oil temperature 10 gas impulses
All Volkswagen diesel straight-5 2.5 Liters AVR engines	4500–4700 rpm4500–4700 rpm4500–4700 rpm
All Volkswagen diesel straight-4 2.8 Liters AUH engines	4300–4500 rpm4300–4500 rpm4300–4500 rpm
From 60° C engine oil temperature 10 gas impulses
All Volkswagen diesel straight-4 2.8 Liters BCQ engines	4300–4500 rpm4300–4500 rpm4300–4500 rpm
From 60° C engine oil temperature 10 gas impulses
All other modifications	4400–4800 rpm4400–4800 rpm4400–4800 rpm
From 60° C engine oil temperature 10 gas impulses

expand_moreMaximum K-value


All other modifications	2 1/m2 1/m2 1/m


Measuring mode	B
Measuring sensor	1
Measuring time	0.5 s0.5 s0.5 s

expand_moreGeneral exhaust gas values


Diagnostic socket location	The diagnostic socket is located on the driver's side in the footwell at the A column.

expand_moreIdling speed with manual gearbox


All Volkswagen gasoline straight-4 2.3 Liters AGL engines	600–850 rpm600–850 rpm600–850 rpm
No adjustment possible
All Volkswagen diesel straight-5 2.5 Liters AGX engines	755–830 rpm755–830 rpm755–830 rpm
All Volkswagen diesel straight-5 2.5 Liters ANJ engines	730–830 rpm730–830 rpm730–830 rpm
All Volkswagen diesel straight-5 2.5 Liters AVR engines	755–830 rpm755–830 rpm755–830 rpm
All Volkswagen diesel straight-4 2.8 Liters AUH engines	750–790 rpm750–790 rpm750–790 rpm
All Volkswagen diesel straight-4 2.8 Liters BCQ engines	750–790 rpm750–790 rpm750–790 rpm
All other modifications	730–830 rpm730–830 rpm730–830 rpm


Minimum engine oil temperature at VET	176°F176°F80°C

expand_morePetrol exhaust gas values

expand_moreCO content at idling speed


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	0–0.5 %0–0.5 %0–0.5 %

expand_moreCO content at increased idling speed


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	0–0.3 %0–0.3 %0–0.3 %

expand_moreDelta lambda


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	0.03 λ0.03 λ0.03 λ

expand_moreIgnition time


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	-5°00'±0°30' - before TDC + after TDC
Only using special tester

expand_moreIncreased idling speed


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	2500–3000 rpm2500–3000 rpm2500–3000 rpm

expand_moreLambda value


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ

expand_moreMaximum HC content at idling


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	70 ppm70 ppm70 ppm

expand_morePetrol conditioning time


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	120 s120 s120 s

expand_moreTest speed for lambda sensor signal


2.3 with gasoline straight-4 2.3 L 141 HP engine (1996.5–2006.7)	500–950 rpm500–950 rpm500–950 rpm

To reduce environment impact and pass government inspections keep emission parameters at the level prescribed by Volkswagen.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2004 Volkswagen LT Bus user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Volkswagen warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Volkswagen LT Bus service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2004 Volkswagen LT Bus you're not only saving money, but also also improving your technical skills and learning something new.

2004 Volkswagen LT Bus Second generation Emission

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Conquer your fears and never give up!

Volkswagen LT Bus Second generation model years

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