EU5 Diesels

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Fri 11 Feb 2011 15:35
EU5 Diesels - torqueconverter

In his review of the new Peugeot 508 diesel HJ comments that he expects a significant shift back to petrol once the public 'discover the disadvantages of EU5 diesels'. What's an EU5 diesel ? and what are the disadvantages? I've asked him what they are and I expect he'll let me know but does anyone else know?

I've got an M-B C220 CDI and I quite like it.

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Fri 11 Feb 2011 19:25
EU5 Diesels - Falkirk Bairn

With each EU directive the technology, the tolerances and the pressures have all increased.

EU5 is stricter than EU4 which most addressed via DPFs in their cars (up to 3/4 year old IIRC)

EU3 were the last non DPF cars and probably the more reliable for that. Pre 2006/7 IIRC

The problems are that paper regs are easier to produce than reliable, high mileage diesel engines. The new regs come faster than on the road than real mileages, so errors made in design or manufacture might not show up for 4/5 years - engine blows up and the punter on the street pays. Longer development times and testing (in real world / not on a test track) would pay dividends.

The cost of EU regs means lots of money spent so I hope that the car makers do not skimp and cut extra corners during manufacture.

My next car will run on unleaded/super unleaded - easier to pay £5-£10 / week at fill up rather than a blown EU5 diesel

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Sat 12 Feb 2011 15:11
EU5 Diesels - Chris23

Couldn't agree more BUT I don't think that the next gen petrol engines with turbos, superchargers, direct injection etc will be any better than the diesels & there are very few petrol engine about in the middle price bracket.

I need a 4x4 & petrol has all but disappeared.

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Sat 12 Feb 2011 18:17
EU5 Diesels - Roly93

EU3 were the last non DPF cars and probably the more reliable for that. Pre 2006/7 IIRC

My 07 A4 2.0 TDi 140 is EU 4 without a DPF, but in general you are right as the TDi 170 version of my car did have a DPF.

The thing is that DPFs and all the other gubbins they put on diesels to improve emissions only work well when the car is worked hard and regularly.

Anyone who buys one and potters around will probably come to greif sadly. Its odd that in order to cut emissions they are actually prodcuing more Co2 as the cars are usually less efficient.

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Sat 12 Feb 2011 18:55
EU5 Diesels - jag

EU3 were the last non DPF cars and probably the more reliable for that. Pre 2006/7 IIRC

My 07 A4 2.0 TDi 140 is EU 4 without a DPF, but in general you are right as the TDi 170 version of my car did have a DPF.

The thing is that DPFs and all the other gubbins they put on diesels to improve emissions only work well when the car is worked hard and regularly.

Anyone who buys one and potters around will probably come to greif sadly. Its odd that in order to cut emissions they are actually prodcuing more Co2 as the cars are usually less efficient.

my 2009 touran 2.0tdi doesn't have a dpf. jag

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Sat 12 Feb 2011 19:29
EU5 Diesels - daveyjp

All VAG CR diesels are already EU5 compliant - EU5 was the reason the PD system was dropped.

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Sat 12 Feb 2011 20:04
EU5 Diesels - Falkirk Bairn

All VAG CR diesels are already EU5 compliant - EU5 was the reason the PD system was dropped.

In my post I said most manufacturers addressed EU4 compliance on DPFs - NOT ALL

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