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Time to talk to the experts

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Old Aug 2nd, 2021, 17:50   #31
Familyman 90
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How have they made the 4 cylinder engine more refined?
They rewrote the laws of thermodynamics specially for the model!
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Old Aug 2nd, 2021, 20:23   #32
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How have they made the 4 cylinder engine more refined?
I'm not sure of all the technical reasons but having had two XC60's - one D5 AWD one VEA D4 FWD - the 4 cylinder is noticeably quieter and smoother.

The VEA engine has dual balancer shafts I believe.
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Old Aug 2nd, 2021, 20:42   #33
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The D5 doesn't need a balance shaft, because on an inline 5 the primary and secondary forces cancel one another out...

https://en.m.wikipedia.org/wiki/Engine_balance

The 4 pot feels great, is very well mounted, superbly sound insulated, and all this will have an impact on the drivers perception of refinement but the laws of physics simply preclude an inline 4 being smoother than an inline 5.
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Old Aug 2nd, 2021, 23:12   #34
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Ah... if the MOT History check is done on the reg number in the photo, then something isn't right unless it's been for sale a very long time....
No reply received. Not overly surprised by that if honest.
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Old Aug 3rd, 2021, 00:11   #35
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Originally Posted by Familyman 90 View Post
The D5 doesn't need a balance shaft, because on an inline 5 the primary and secondary forces cancel one another out...

https://en.m.wikipedia.org/wiki/Engine_balance

The 4 pot feels great, is very well mounted, superbly sound insulated, and all this will have an impact on the drivers perception of refinement but the laws of physics simply preclude an inline 4 being smoother than an inline 5.
I don’t disagree with any of that - but what else matters other than driver perception? Go and drive a 2016 D4 and D5 back to back and then tell me if you think I’m wrong?
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Old Aug 3rd, 2021, 09:31   #36
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I'm not sure of all the technical reasons but having had two XC60's - one D5 AWD one VEA D4 FWD - the 4 cylinder is noticeably quieter and smoother.

The VEA engine has dual balancer shafts I believe.
yes , also the cylinder block is clad with sound deadening material , not that you can see the block of course !
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Old Aug 3rd, 2021, 13:28   #37
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Still doing my research on the engine options but most of what I read say the engines are noisy and more suited to motorway cruising at a suitable speed, that is not what I will be doing. Now if somebody could just confirm what I have gleaned from the web and here.

D3 2.0L 134BHP 4 cyl

D4 2.0L 161BHP 4 cyl

D5 2.4L 213BHP 5 cyl

Still no wiser as to which would suit my needs which are around town use and occasional 50 mile jaunt on mainly A and B roads
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Old Aug 3rd, 2021, 14:50   #38
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Still doing my research on the engine options but most of what I read say the engines are noisy and more suited to motorway cruising at a suitable speed, that is not what I will be doing. Now if somebody could just confirm what I have gleaned from the web and here.

D3 2.0L 134BHP 4 cyl

D4 2.0L 161BHP 4 cyl

D5 2.4L 213BHP 5 cyl

Still no wiser as to which would suit my needs which are around town use and occasional 50 mile jaunt on mainly A and B roads
In that case you don't really need a diesel !
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Old Aug 3rd, 2021, 15:41   #39
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Not disagreeing but would like a car no more than say 5 years old so that eliminates petrol.
Now if you want to flog me your 940 !

Last edited by bogart; Aug 3rd, 2021 at 15:43.
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Old Aug 3rd, 2021, 15:52   #40
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Originally Posted by bogart View Post
Still doing my research on the engine options but most of what I read say the engines are noisy and more suited to motorway cruising at a suitable speed, that is not what I will be doing. Now if somebody could just confirm what I have gleaned from the web and here.

D3 2.0L 134BHP 4 cyl

D4 2.0L 161BHP 4 cyl

D5 2.4L 213BHP 5 cyl

Still no wiser as to which would suit my needs which are around town use and occasional 50 mile jaunt on mainly A and B roads
You’ll need to bring it on a good run every now & again on the motorway for at least half an hour (once a month at least). If you don’t, you’ll end up with DPF issues.

Don’t always believe what you read. A Diesel engine is never going to be as quiet as a Petrol, although Diesel are getting more & more refined. Admittedly, a five cylinder around town is a bit noisy when you take off, but once you’re at say 30/40mph, you can barely hear it.

I’d still go for a five cylinder personally, but that’s my opinion. I believe the four cylinder D4’s are nice too. If I was going down the four cylinder route, I’d go for the D4.

Your best option is to have a drive in a D4 (four cylinder) & then the five cylinder. Its your car, your money & your choice. What I/we (other forum members) suggest may not suit you.
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