L405 Diesel Hybrid system failure
Discussion
Not looking for assistance (though comments welcome) anymore after already posting about the problem on here and bumping with no luck.
Car is a 2016 L405 EU6 diesel hybrid, 63k miles and I’ve made the mistake of putting in in storage for a year. That seems to have been enough to damage the hybrid battery or its charging systems. For some reason it’s designed so that the car is practically undrivable when the hybrid bits fail, because the starter battery also doesn’t charge (it’s charged by the hybrid battery, there is no alternator) despite the SDV6 being perfectly fine. I can’t even get it booked in at any main dealer for diagnostics for 6 weeks. From all I see online in other forums it seems JLR will just want to sting me up to mid five figures (!) to supply and fit a new 1.8kW hybrid assembly. It seems it’s a fairly common failure mode. The screen displays “Reduced range - Hybrid system and a/c temporarily unavailable” - a quick OBD read revealed literally dozens of codes, most are faults in secondary systems affected by no charging of either hybrid or starter (lead acid) batteries. It will start and run about 45mins on a fully charged lead acid battery before it dies. A reduced range Rangie indeed…
Bright side it seems repairs are possible from a bit of online digging, it’s a relatively common failure mode on these when the hybrid battery ages a bit or is left to go flat - so It’s going to a specialist to see what can be done.
I will update this post/thread for reference when it’s resolved.
Car is a 2016 L405 EU6 diesel hybrid, 63k miles and I’ve made the mistake of putting in in storage for a year. That seems to have been enough to damage the hybrid battery or its charging systems. For some reason it’s designed so that the car is practically undrivable when the hybrid bits fail, because the starter battery also doesn’t charge (it’s charged by the hybrid battery, there is no alternator) despite the SDV6 being perfectly fine. I can’t even get it booked in at any main dealer for diagnostics for 6 weeks. From all I see online in other forums it seems JLR will just want to sting me up to mid five figures (!) to supply and fit a new 1.8kW hybrid assembly. It seems it’s a fairly common failure mode. The screen displays “Reduced range - Hybrid system and a/c temporarily unavailable” - a quick OBD read revealed literally dozens of codes, most are faults in secondary systems affected by no charging of either hybrid or starter (lead acid) batteries. It will start and run about 45mins on a fully charged lead acid battery before it dies. A reduced range Rangie indeed…
Bright side it seems repairs are possible from a bit of online digging, it’s a relatively common failure mode on these when the hybrid battery ages a bit or is left to go flat - so It’s going to a specialist to see what can be done.
I will update this post/thread for reference when it’s resolved.
A nightmare indeed.
The hybrid battery in question is a piddly little 1.8kWhr thing (for comparison, a £150, 100ah 12V normal lead acid battery would be 1.2kWhr) with an EV range of under a mile.
Price quoted by the JLR dealers, and I did try more than one just to confirm: £22,380 + VAT just to supply the battery with no quoted lead time.
The hybrid battery in question is a piddly little 1.8kWhr thing (for comparison, a £150, 100ah 12V normal lead acid battery would be 1.2kWhr) with an EV range of under a mile.
Price quoted by the JLR dealers, and I did try more than one just to confirm: £22,380 + VAT just to supply the battery with no quoted lead time.
P100 said:
I would suggest you have a chat with Cleevley EV in Gloucester, who specialise in just this.
Thanks. I’ve found similar specialists in UK and EU who all seem to specialise in a fix for these cars. Still costly though, high five figures. JLR attitude still feels very wrong though.
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