yeah - you're right. I'd rather not risk being non-compliant after spending a load of money

UPDATE: Darkside suggests doing both and both will need mapping out, but no guarantees it will pass the MOT with the DPF removed.

In which case it seems the sensible option is to retain both it seems.

Hi all, I'm looking at installing an EGR bypass and blanking off/removing the exhaust cooler and its thermostat from my dad's E70 3.0D. I can see Darkside Developments does a dedicated kit (https://www.darksidedevelopments.co.uk/products/bmw-2-0-3-0-m47n2-m57n2-engine-egr-delete-race-pipe.html) but ...

Yeah likewise, I had the same car (late E46 330D manual - loved that car). Did the same: swirl flaps, EGR blanked and remap to 256bhp all in one hit. Cleaned the hard baked black gunk from the inlet too when I had it on the bench. I've suggested my dad does the same to the X5, and removes the EGR ...

Just want to say a MASSIVE thanks to everyone on this thread. So my dad bypassed the stainless exhaust cooler, and the white smoke stopped. It would have been really hard to diagnose this remotely myself (as he's in Derbyshire on stranded on a caravan site and I'm in Epsom, 250 miles away ...

Have just been looking at Real OEM and am now wondering if it's the EGR cooler or thermostat. Is there a way if this is faulty or not assembled right water can be either pulled into the inlet manifold or it can become pressurised and water pushed into the exhaust? Been a while since i took an EGR ...

Cheers bud, its an M57, I recognise the EGR thermostat from my 330d (had one blow, and another new one weep with a crimped 0-ring). He needs to inspect the front end, didn't realised the EGR had a radiator, or how it's water would enter the inlet, but it does seem odd it's been blowing white smoke ...

thanks for that, I'll have a look on Real OEM. I recall my 3 series had an EGR thermostat (the short black plastic one), but not it's own rad. Do you know where it is?

Oh, and it's draining coolant a full rad in around 10-15miles driving and the smoke seems to be mainly steam.

Could any of the above issues cause a head gasket to blow? Seems odd if it has after this work was done. Could back pressure from a clogged up DPF or EGR pressurise the head?

Thanks buddy, the glowplug controller wasn't replaced (my dad's garage did the repairs. You're right though, I'd have done the controller at the same time as did on my 330D, and made sense to do them all). It looks like smoke, the car's done 250 miles with the new plugs in (inc towing a caravan) and ...

So my dad's X5 (used to be mine, the bronze one in my avatar) has developed a few engine issues of late out of nowhere and now it seems it's 'burning' coolant. It's an early E70 3.0D, done around 100k and engine was running fine, doesn't use any oil or coolant. However it's now blowing white smoke ...

Ack - of course! it's an E70...now fixed in the title!

Hi all, I'm selling my X5 as my wife finds it too big to use day to day, hence we've switched to an X3 F25 (shame as I love the X5). I've had it on eBay for a few weeks but have had so many idiots/scammers message it's getting depressing, hence thought I'd pop it on here as I'd rather sell to a BMW ...

has the thermostat been checked? If it's stuck open the engine won't be heating up properly, this caused a drop of 3-4mpg in my E46 3.0D.

You may need software to check though if your X5 doesn't have water temp on the dashboard clocks (as i think none do)

Thanks - that's really helpful. I'll take a look at how the 18" look. Mine's an SE, so not an M Sport. What I'm after is a square set-up, so I can carry a matching spare in a size thats the most forgiving on ride quality, tyres, diffs and my wallet. Would I notice a big difference in ride quality ...