TD5 Auto Question

Thanks everyone. I`ll clean the MAF tomorrow and see if it improves. If it doesn`t I`ll contact you Paul for a name. Thanks again, I`m loving it so far just not used to having to drive so hard.... cheers

You are probably not really driving it that hard, at 2500 rpm you should be taking off just fine at 3000 you should be flying, they will be a lot louder than the petrol motors at these rev range
Diesels do lack the initial poke of the petrol engines, but will keep pulling
They do take a bit of getting used to, but once mastered I am sure you will be very happy
See how you go, and as Paul said, get hold of someone with a nanocom to record some live data and check for faults

Also, a quick test of your MAF if you suspect it is to disconnect it and take it for a spin, if it is vastly improved your MAF or its circuit is suspect

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Originally Posted by jadan

Thanks everyone. I`ll clean the MAF tomorrow and see if it improves. If it doesn`t I`ll contact you Paul for a name. Thanks again, I`m loving it so far just not used to having to drive so hard.... cheers

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Don't contact me ;) - have a look at the map I linked to. Find a marker or two that are close to where you live and click on them. That will tell you the members username and which vehicles their gear works with.

You shouldn't have to drive hard - 1,800-2,000rpm should be enough to get you moving. 2,400rpm is 110kph freeway cruising with torque convertor locked in top. 3,000rpm is really getting into "gunning it" territory.

One tip for hilly country - use sport mode. The auto will hang onto gears for longer before changing up which can help.

cheers
Paul

I use third gear in the passes etc. It locks up in third too and then it does not waste so much energy in the auto.

The other question is does your disco have standard sized tyres. 235 70 16. Or 255 55 18. When I put bigger tyres on mine I struggled to get up my mildly inclined driveway from a standing start. Foot flat to the floor for about 2-3 seconds while the turbo came up to boost, then it was ok.

Hi, i cleaned the MAF and it did make a difference. Not huge but noticable. I am also putting a little more boot in to it and that makes a difference! I do have 18in wheels so this will make a difference as well. I went for a long drve and am loving it. Thanks for the info.... cheers:)

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Originally Posted by jadan

Hi, i cleaned the MAF and it did make a difference. Not huge but noticable. I am also putting a little more boot in to it and that makes a difference! I do have 18in wheels so this will make a difference as well. I went for a long drve and am loving it. Thanks for the info.... cheers:)

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An easy job which I'd recommend you do each time you replace your air filter.

Funny, the one I have bought seems to have excellent takeoff .

It is a EU3 auto with the extra 40Nm but I was impressed with the meaty torquey feel. Almost as good as my Thor equipped 3.9.

I haven't had it over about 60Kmh though so maybe it will lay down on the first hill.
Regards Philip A

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Originally Posted by carjunkieanon

A few things I've learnt re a 2004 D2a.

1) It does need to be driven with a heavy right foot.
2) A genuine MAF unit works, a non genuine MAF doesn't. Don't know why. Learnt that from Davis Performance Landy.
3) I had power issues with mine for ages. MAF, EGR + still unknown, probably pressure switch. When I first bought it it would struggle to do 80km/h on the flat on the freeway, and might do 40km/h up a hill with a good run up. All sorted now.
4) It does have a limp mode which (as I understand it) can cut you down to low revs and speed to (I assume) protect the engine. This is reset by switching off the ignition. Recently after driving quickly up some very long steep winding hills, then driving quickly up some not so steep long hills, then a few more steep hills, all with good revs and now loss of power I suddenly found that when uphill, pedal flat to the floor it wouldn't rev above 3,000rpm and top speed was 60km/h (100km/h zone). At the top of the hill I pulled over, switched off, my wife took some photos and I let the kids stretch their legs. Restarted and drove off back to normal.

Have fun with your Disco.

R

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Carjunkieanon,

Be careful, it sounds like your TD5 is getting too hot. You may need to check if you've done your gasket as these symptoms are similar to overheating. When the engine gets too hot the ECU limits the fuel.