Smoking Disco

Nov 04, 2003 7 Replies

My Disco 300 TDI recently started puffing out smoke under acceleration but only when the engine was warm. I thought perhaps the airfilter was becoming blocked. Then the engine lost power almost completely while intermittently producing large amounts of black smoke. I managed to get home. Next day it started immediately but smoked and lost power after half a mile or so. I managed to limp to my local independent Landrover workshop. His conclusion is that there is something wrong with the Exhaust Gas Recirculation system, either a valve, solenoid or its ECU. I didn't even know a 300 TDI had an EGR system. The EGR valve is being replaced tomorrow but if this does not fix the problem I don't fancy having to replace the rest of the system piece by piece. Does anyone know if the EGR can safely be disconnected and what the effects will be if it is.


-- Keith (London, UK) Land Rover Discovery 300TDI



I've done this on a 200Tdi with no ill effects. Don't spose the 300 would be vastly different.

David

happens a lot with egr valves. On cars we just cut a piece of steel the same shape as the place where the egr valve fastens to the manifold (like a gasket but with no hole in the middle) and fit that to block it all off no more egr no more problem.

-- Jon

On or around Tue, 4 Nov 2003 21:41:41 -0000, "jOn....." enlightened us thusly:

done that to our 300 TDi, no noticeable change one way or the other, just as a precaution.

Thanks. Is there any effect on emission for the MOT?

-- Keith (London, UK) Land Rover Discovery 300TDI

I know of several people, myself included, who have blanked off the EGR system on a 300Tdi with absolutely no ill effects whatsoever. It even passed the emissions test at MOT time.

Blanking it off is very easy - just cut a suitably shaped piece out of the bottom of a tin can, drill a couple of holes and fit it using gasket sealant. 15 minute job and a lot less costly than replacement.

HTH Steve G

In article , David French writes

EGR was never fitted to the 200 tdi engine in the UK.

On the 300 it is not a problem disconnecting it at all an in fact you may notice that the car goes better as a result.

Bit of a waste of money having it fixed.

good luck

Thanks. It's been fixed now but if it ever happens again I will know better.

-- Keith (London, UK) Land Rover Discovery 300TDI

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