Hi all

Long term L405 owner x 4 and D3/D4s various so have been around these boards a while

On December 23rd we took delivery of a P460 SE - Santorini with caraway and 22s but no Drug Dealer black bits car has lots of kerb appeal, seems well put together and is wonderfully comfortable.

It’s our first hybrid and I am wondering how much we/the car are learning in these early, and clearly very cold, days.

On day 5 the car suffered two significant hesitations when pulling away from lights and very shortly afterwards went into limp mode. LR assist came out, squirted a few updates on it and it seemed to do the trick.

As an aside the car didn’t come with Pivi 4.2 which my Defneder got some months ago. It turned up last night and 4.21 has yet to appear - a bit surprised tha lt the dealer didn’t force the updates before delivery.

Anyway back to the driving and some questions for hybrid RR owners if I may ?

1 - Does yours struggle to stay in EV mode in the cold weather ? Ours does a few miles and then with even a relatively light extra bit of throttle once we get on to the main roads it switches out with a a bit of a rev into petrol and is quite reluctant to go back unless I cruise and then the below frequently happens …..

2 - ……there seems to be a strange retardant/rubber band effect at about 2k revs where it keeps thinking about EV vs petrol and occasionally goes EV for literally a few seconds and then back again. This can be very disconcerting at junctions but seems to be something that push of the accelerator fixes with a rev and a litch

Short version how smooth/seamless does your EV experience feel and should we expecting to just jump in and drive around on EV until the battery is flat or is it a constant in/out scenario ?

Part of me thinks it’s just a combination of car and driver learning plus the fallout from recent updates which came with a warning about EV performance as they bed in plus the cold weather.

For context I have just done a 13 mile journey in 0 degree temps after an overnight charge and a 30min electric precondition.

Car set off in EV and did 2.5 back road miles on EV, then getting on to A road under what I would say was moderate acceleration it switched to ICE. It remained on ICE all the way other than brief flickers into EV at traffic lights and when crossing off throttle. Total journey 13 miles at average speed of 45mph and supposed 36mog efficiency

Any and all observations gratefully received

EDIT TO ADD - Have just set off on another test run, car started on EV for a very short distance, then ICE kicked in under light acceleration and now cannot select EV at all with the “EV temporarily unavailable” message in the dashboard - starting to think I might have the heater matrix issue I have been reading about …..

Sorry can’t help with the EV issues having only borrowed one of the early RRS versions a few years back (I thought it was dreadful) but on the Pivi Pro side the dealer cannot force the updates and the car will just update itself over time  "UNDERSTEER" ----is when you hit the fence with the front of the car.
"OVERSTEER" ------is when you hit the fence with the rear of the car.
"HORSEPOWER" ----is how fast you hit the fence.
"TORQUE" -----------is how far you take the fence with you.

Have a look at my post about HV heater. I’ve got a p400e and it’s one of those faults that you don’t really know what’s wrong until it’s fixed!

Mine has a new one on and will run on EV (provided I don’t ask for too much power) until the battery is dead. I’ve noticed now we’re in minus temps that it sometimes runs for the first half mile or so before going back to normal.

An easy test is to turn off the cars heater completely. The HV heaters purpose is to heat the cabin using battery, rather than the engine. The car should run freely in ev mode with it off. If you turn the heater back on whilst driving and the engine starts, then your heater has failed. Mine gave no faults on Icarsoft so this is the only way you’ll know for sure.

Loads of people must be driving round, unaware that it’s even a fault, just thinking that this hybrid malarkey isn’t much good! My Previous RR's!
2018 P400e Autobiography
2008 TDV8 Vogue
2006 TD6 Vogue
2007 TDV8 Vogue
2007 RRS (I know, it doesn't count!)
2005 4.4 Vogue on LPG
2005 TD6 Vogue
2003 4.4 Vogue
2001 4.6 HSE
2000 2.5 DHSE
1999 4.6 HSE
1997 4.6 HSE on LPG
1995 2.5 DSE
1989 3.9 EFI classic
1988 3.5 EFI classic

Japseroony wrote:

Sorry can’t help with the EV issues having only borrowed one of the early RRS versions a few years back (I thought it was dreadful) but on the Pivi Pro side the dealer cannot force the updates and the car will just update itself over time

hoppy_70 wrote:

Have a look at my post about HV heater. I’ve got a p400e and it’s one of those faults that you don’t really know what’s wrong until it’s fixed!

Mine has a new one on and will run on EV (provided I don’t ask for too much power) until the battery is dead. I’ve noticed now we’re in minus temps that it sometimes runs for the first half mile or so before going back to normal.

An easy test is to turn off the cars heater completely. The HV heaters purpose is to heat the cabin using battery, rather than the engine. The car should run freely in ev mode with it off. If you turn the heater back on whilst driving and the engine starts, then your heater has failed. Mine gave no faults on Icarsoft so this is the only way you’ll know for sure.

Loads of people must be driving round, unaware that it’s even a fault, just thinking that this hybrid malarkey isn’t much good!

Best way to check if your HVHC is broken is using electric pre-cononditioning. If your car gets warm with electric pre-conditioning, it's something else. If electric pre-conditioning is blowing cold air - your HVHC unfortunately needs (another) replacement.

Thanks

Have tried that and all is well

Just had a visit from LR assist

He confirmed that the hardware is all fine but the system is throwing a coolant error which!is what it showed previously but his colleague cleared with a module update last week.

It would seem that the reason for the low EV performance / almost immediate switch to hybrid and non possibility of switching it back on unless rebooting the car, is because the car thinks the EV system is going to overheat and so locks it out.

Faulty software or sensor is his best guess

Car goes into dealership on Monday …….

Four L405s, one D3, three D4s and a new Defender and this car has matched my total LR Assist calls covering all of those in its first 10 days !

I'm very unhappy about me choosing PHEV over petrol version. I think it will give me nothing but increasing PITA over the years. I was initially planning to keep this car for 10+ years, but I'm getting an increasing temptation to get a rid of this crap ASAP for whatever cost just to minimize the damage.

I have seen your posts over the on the US forum and it’s pretty clear you are unhappy.

We went for PHEV as, assuming it works, it is perfect for our use cases given my wife will drive it on local trips the vast majority of the time. We have friends who have RR and RRS hybrids and they are very happy with them and their performance.

I am hoping that the issues we have currently will be fixed and we’ll be just as content.

Let’s see.

I really hope you'll get your issues fixed and everything will be fine. Maybe it's just northern climate I live in.

RSK21 wrote:

hoppy_70 wrote:

Have a look at my post about HV heater. I’ve got a p400e and it’s one of those faults that you don’t really know what’s wrong until it’s fixed!

Mine has a new one on and will run on EV (provided I don’t ask for too much power) until the battery is dead. I’ve noticed now we’re in minus temps that it sometimes runs for the first half mile or so before going back to normal.

An easy test is to turn off the cars heater completely. The HV heaters purpose is to heat the cabin using battery, rather than the engine. The car should run freely in ev mode with it off. If you turn the heater back on whilst driving and the engine starts, then your heater has failed. Mine gave no faults on Icarsoft so this is the only way you’ll know for sure.

Loads of people must be driving round, unaware that it’s even a fault, just thinking that this hybrid malarkey isn’t much good!

Could I ask to you to clarify this bit ?

“I’ve noticed now we’re in minus temps that it sometimes runs for the first half mile or so before going back to normal.”

Do you mean it runs in ICE for a short while in cold temps after starting and then flicks to EV or the other way round ?

Thanks again

To the OP, I’ve never had any of the issues you have described. In contrast to my previous P400e, my P550e stays in EV mode, even if I put my foot down or in very cold temperatures. 2024 Range Rover P550e AB

Something is wrong there. MY 460e in EV mode will run the battery dry unless you go mad with the accelerator. I've done 1500 miles in mine and only had the engine on for around 200 of those. All my local commuting is battery. Having previously had 2 EV's is suits me perfectly. 1 mile per KWH isn't great, but the refinement you get makes up for it.

My experience is the same as Pixelpower's 2024 P550e Autobiography
2016MY TDV6 Autobiography - Gone
2011MY 5.0 SC Autobiography Black - Gone
2005 TD6 Vogue - Gone

Same here, our P550e runs on EV until battery is empty. Occasionally - if the ICE hasn't been used for weeks - the ICE kicks in even in EV mode, but after a few kilometers it goes back to pure EV mode again.

I tested a MY23 P510e two years ago, and that car had a similar fault: was not able to run longer distances ( > 10 km) in pure EV mode, even if the battery was fully charged. L460 P550e AB SWB MY24
Sold: L322 TDV8 Vogue MY07
Mini Cooper S Convertible

Last edited by Eirik34 on 7th Jan 2025 6:51am. Edited 1 time in total