Vehicle & Technical > Discovery

New engine isnt as great as I was hoping.

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muddyjames:
I have been on a long journey which was mostly morotways and I got 23mpg. I did about 300miles. I wadnt chuffed at all. I thought an engine that had done 100k less than my old one and runs alot smoother and was an ex police cars so lots of servicing would have been alot better.

Towing the caravan last weekend was great once I got to 60mph but getting there took forever. I found I had to put the auto box lever into 2 at a junction then once it got to about 3k of revs in 2 I would then move it to 3 then 3k revs into D. I found that was best for pulling away. Coming home in the winds yesterday I was struggling to keep at 50mph and sometimes saw55mph but saw 60mph on dual carriage ways / motorway twice for about 5 minutes each time.

Is the 300tdi engine really this bad on mpg and power and I am expecting more from it that it will never have or is there something I am not doing right?

Would be tempted to sell it soon but the value of it is so ow I wouldnt be able to afford a shogun or td5 to replace it. It has 12months and a few days mot on it and 6 months tax and a few off road bits on it and a few off road marks. I would probably be lucky to get £1400 for it I guess. It's an M reg with 190k on the clock (new engine has done 90k) and is a 300tdi auto.

Anyone got any ideas as I am getting cheesed off with having such a poor towing vehicle. Starting to think my series vehicles were better!! :lol:

Jim-Willy:
My Dads 300Tdi auto disco is a nail, very slow to take off.....  My Defender TDi auto is far perkier with the lower xfer box but she has had it at 65-70 unless you screw her...

Frankie-Boy:

James,

Its a long shot but try changing the fuel filter, it won't do any harm but it might do some good.  :)

bilge rat:
hi james , not up on the auto but have heard they are less economical than the manual, i get about 27 when towing . is your auto an edc or before that . is the pump timing crack on . iff its running smooth and low on performance it may be out a little. noisey powefull and smokey itt;ll be a little out the other way . there easy to check . i know with your recent luck you will be concerned about messing too much but has the egr been blanked . did you clean the intercooler after your last problem. as said fuell filter / air filter, check the basics first .then go from there . ive tweeked both pumps on mine without going daft or without any probs makes a hell of a difference . just  a thought  ?..alan....

peasey:
exactly as bilge rat said,i cant comment on towing yet as i havent but my 300 tdi is not quick off the mark but fast enough to pull out quickly at a busy round about,im getting about 32mpg with no pump mods and only the egr blanked,when i did this i cleaned out ALL the pipework and intercooler with petrol.Mine has got 120,000 on the clock i have had it up to 95mph and she will sit at 60mph all day high winds or not so somethings definatly a miss,have you checked out turbo hoses?to be honest mate my moneys on the timing though.

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