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  #1129  
Old 05-26-2015, 08:41 PM
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Re: Is DPF issue for 2014 CRD fixed now?

Well mine is in today and should be having this latest update applied, hopefully. I'll see how she drives after that. i hope it doesn't make anything worse, because its been all good so far. Except I do get that lag on take off (I don't think it is turbo lag, more torque converter or transmission)

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  #1130  
Old 05-26-2015, 08:53 PM
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Re: Is DPF issue for 2014 CRD fixed now?

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Originally Posted by Benn0 View Post
Well mine is in today and should be having this latest update applied, hopefully. I'll see how she drives after that. i hope it doesn't make anything worse, because its been all good so far. Except I do get that lag on take off (I don't think it is turbo lag, more torque converter or transmission)
I still get the lag but I remember somebody saying it's worse if you have hill start assist on. I just give it a bit more toe on takeoff. I was worried when I would hear this big 'thump' from the back until I realised it was the dog being thrown around
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  #1131  
Old 05-26-2015, 09:02 PM
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Re: Is DPF issue for 2014 CRD fixed now?

Poor pooch!

Yeah, it was worse with the hill start on, but I still get it when taking off from a dead stop at the top of my hilly street, more noticeable when the car is cold, once warm its smooth. I think its the torque converter.
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  #1132  
Old 05-26-2015, 09:30 PM
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Re: Is DPF issue for 2014 CRD fixed now?

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Originally Posted by Benn0 View Post
Well mine is in today and should be having this latest update applied, hopefully. I'll see how she drives after that. i hope it doesn't make anything worse, because its been all good so far. Except I do get that lag on take off (I don't think it is turbo lag, more torque converter or transmission)
Thanks BennO for that info, Just thought it was me again but that's my feeling also regarding the LAG. It's not turbo lag as I feel this engine is not too bad for that. I ran the torque converter theory by the service guys but who knows? That's what it feels like though, you keep pushing in throttle, then all of a sudden it launches. Used to do it all the time when I first got the vehicle but updates solved the issue only for it to return with the latest round. Tried the hill assist OFF and no change.
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Old 05-26-2015, 09:48 PM
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Re: Is DPF issue for 2014 CRD fixed now?

Yeah, if the engine revs are building then it isn't turbo lag. I find the revs come up fine, the trans just isn't engaging, then when it does, LAUNCH like you say. I've got use to revving it, then coming off the accelerator as it engages.
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  #1134  
Old 05-26-2015, 11:08 PM
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Re: Is DPF issue for 2014 CRD fixed now?

I'll be taking mine in for scheduled service soon, so will ask if there is any change in this update version.

This new one supercedes the Dec18 one so if you hadn't done it before it obvoiusly does all the same patches as before, but obviously something is different and additional in the code in this new number 18-044-15 instead of just a revB.

I took mine in especially to get the 18-019-14 A done to cure the clatter/knocking noise.
Rattle
I suspect this was done by fiddling with the injection rate shaping (ie the way the fuel is injected into the chamber during the cycle)

It did quieten it down instantly at the time.
Since this update I can only notice the injector noise when warming up from cold to about 70C and its smooth and quite after that.
In the "Diesel Rattle" thread i seem to remember that some commented that any fix was temporary and would come back. I don't know the basis of that though.

The diesel noise varies with engine loading pretty much as expected.
Low revs and high engine load (initial acceleration -fuel being injected) is where it is most noticeable. Low revs the engine noise is quieter so you can hear the injector rattle more clearly.
It is more noticeable in "ECO" simply because putting you foot down in ECO there is a delay in response compared to Sport mode.

Cruise control
I don't use the cruise control so didn't experience any problem.

DPF
The DPF sequence in mine has been consistent since this update. -
Triggers at >65%full and when speed is >100kph.
Or for slower trips and never reaching 100kph it might get to 72%-75% and then triggers, doesn't appear to be speed dependent.
The engine doesn't have to be fully warmed up either. (the "warmup counter" indexes at about 67-68C oil temp or a similar coolant temp)
I had a DPF burn start at 50C oil temp a couple of weeks ago.
A full burn sequence will "clean" down to 8%
Stopping the car and idling for about 2minutes will abort the sequence.



Just a comment about the performance off the line with normal driving.
I do find that it is a bit laggy from a dead stop when you initially want to get it moving eg at a roundabout /give way etc.

I think this could be in the torque converter mostly, but also the engine doesn't seem to have that much torque from idle 700-1200rpm but then comes on really strong around 1500+ rpm.
The single turbo is a decent sized one so obviously it'll need a bit of time to spool up. (The current Land Rover 3L Tdi is a twin- turbo and so is the V8 LandCrusier).

The "ECO" button seems to exacerbate this brief lag off the line which is why I have a automatic reflex on startup to switch it off.
With ECO you push the throttle more and then it surges a little too quickly, which is probably LESS economical.
I'm sure if it was always like that i'd just adapt to it.

HSA has been off since day 1.



OT: A question about gearshift program TSB 21-012-15. (Feb 28).
Anyone have it?
Other than the ECO button thing does it improve anything?
I have a little shift bump from 3-2 , 2-1 at slow speed, but not too bad
In Sport mode the shift selection, shifting down for engine braking downhill seems a little out. Gets into a lower gear a bit too early and is reluctant to change up with light throttle.
Not necessarily a problem but the gear selected isn't always the one that I think it should be.

Maybe the MY18 model will have Neurotransmitter Actuation* so it it does exactly as you think it should.


* not a real thing, I just made that up
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  #1135  
Old 05-26-2015, 11:56 PM
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Re: Is DPF issue for 2014 CRD fixed now?

Steve1307 have noticed as you changes with the update. The decel bunt has also returned from 3 to 2 but not too bad, just annoying it didn't do it before. Also they have changed the shift into 8th at a lower speed so now around 70kph + it hunts between 8th and 7th, plus the lag on the throttle again. Quite noticeable it's in 8th as the Revs are a lot lower around town than before. The downhill gear change to assist braking at low throttle settings must have been programmed by a Morris Mini owner that loved chucking it back a gear or two and thought that's normal to rest your head on the windscreen. Slight exaggeration but they know what they have done.
The clatter is similar as you describe but mine does return now even when it has warmed up and on other days it can be perfect. The service guys are also looking at individual injector programming as they agree something is not right. Think the update interaction with systems just stuffs a few of these vehicles around.
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  #1136  
Old 05-27-2015, 12:04 AM
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Re: Is DPF issue for 2014 CRD fixed now?

Yeah, they better not mess with mine.....
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  #1137  
Old 05-27-2015, 12:16 AM
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Re: Is DPF issue for 2014 CRD fixed now?

Hahaha... you've rolled the dice Benn0. The mystery bag of post-update changes is like a lucky dip.
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  #1138  
Old 05-27-2015, 12:20 AM
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Re: Is DPF issue for 2014 CRD fixed now?

I'm hoping all they do is this DPF update. I do worry that a battery disconnect means my trans has to re-learn again and may not learn as well as it did the first time.....

And this is the main reason i'm not asking for the eco button fix. I'll live with it.
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Old 05-27-2015, 02:14 AM
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Re: Is DPF issue for 2014 CRD fixed now?

Quote:
Originally Posted by Steve1307 View Post
Cruise control
I don't use the cruise control so didn't experience any problem.
Donít take this personally, but may a herd of elephants fall you while playing pianos and crush your very existence.

The amount of people I drive behind that I know have CC and donít use it, instead have their velocity constantly vary for no good reason is insane.
As someone who engages CC at every point that is not stop start traffic, I notice everyone elseís variations. For most, I think they simply have no idea that they have dropped 10Kmh+ for no good reason, for newer cars with big digital displays, I think they are simply blind and just lucky as hell they are going in a straight line.
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  #1140  
Old 05-27-2015, 02:22 AM
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Re: Is DPF issue for 2014 CRD fixed now?

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Originally Posted by SNUKE View Post
Don’t take this personally, but may a herd of elephants fall you while playing pianos and crush your very existence.

The amount of people I drive behind that I know have CC and don’t use it, instead have their velocity constantly vary for no good reason is insane.
As someone who engages CC at every point that is not stop start traffic, I notice everyone else’s variations. For most, I think they simply have no idea that they have dropped 10Kmh+ for no good reason, for newer cars with big digital displays, I think they are simply blind and just lucky as hell they are going in a straight line.
Lol. Best post ever. I just read it out to my husband who 1000% agrees with everything you say Snuke. When we first took delivery of the Grand, two odd years ago, he thought it was a bit of a 'bells and whistles' feature.

Now, it is his most loved feature of the WK2 and he hits it as soon as he can.

It is also probably the only 'techy' feature that he loves on the KL above the Grand because the KL has ACC with stop/go - something that will obviously be introduced on the refreshed WK2's.
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