AGM battery in 2011 RRS

[gimebakmybulits]

A friend dropped her 2011 RRS off at the the dealer for several issues and among them were some electrical problems. One was the high beam assist will turn on with oncoming traffic present and occasionally the touch screen will freeze. Initially she was told she had the incorrect battery (H7 instead of H8) and they would have to replace it (for $535) prior to being able to diagnose the issue. I told her those came with an H7 (although flooded an not AGM) and that's what the dealer installed in mine under warranty (MTP-94 H7 Interstate) they then proceeded to tell her that it's because it's AGM and not flooded. Because the touch screen issue was occurring prior to her having replaced the battery with the AGM about six months ago and the high beam assist issue is only about two months old I would think that the battery is not part of the issue...after relaying that to the dealer they now say the battery tests bad and Rovers everywhere are having problems with AGM batteries and she will need to replace due to the bad battery. Prior to dropping the vehicle off she was not getting any low battery warnings so I have a hard time believing the battery is bad.
I'm curious as to what those in the know have to say. I found LTB00469NAS1 but that seems like a cost measure and not a technical issue.

 

[p m]

Hmm... 2010 LR4 came with an AGM, and I've replaced it twice with other AGMs.

 

[jymmiejamz]

The battery is not the issue.

The high beam assist is easy to test with a flash light. Just shine it right into the sensor. If the lights don't switch to low beam, I would assume the issue is a faulty sensor.

 

[Jagfixer]

My Rovers use AGM batteries. My 2011 LR4 battery costs $225 at O'Riellys. Installing yourself saves $300 over dealer.

 

[gimebakmybulits]

Hmm... 2010 LR4 came with an AGM, and I've replaced it twice with other AGMs.

Does your LR4 have the Eco start/stop?

The original battery was replaced at the dealer under warranty at 21k miles, the replacement was replaced at 36k at her cost (by dealer) and the 8 month old AGM they are saying is bad was installed at 57k (not by the dealer).
The car sat at the dealer for two weeks before they even started looking at it, is it possible that is enough time to draw down the battery to the point they will try and sell a replacement instead of simply charging it then doing the work?

 

[discostew]

The low battery warning might just be because of gateway module software and it needing the battery monitor reset.
The auto high beams might just be user error or possibly the correct driving side not being selected in the instrument cluster menu. She needs to select drive on right, as apposed to stupid britts who drive on the left side.

 

[discostew]

According to my parts department the 2011 Range Rover Sport does not take a AGM battery. The way I usually figure if it needs an AGM battery is if it has start stop ( eco stop). Once they started doing eco stop shit they got AGM batteries

 

[discostew]

According to my parts department the 2011 Range Rover Sport does not take a AGM battery. The way I usually figure if it needs an AGM battery is if it has start stop ( eco stop). Once they started doing eco stop shit they got AGM batteries

 

[discostew]

Auto high beams uses the camera up in the rear view mirror trim covers. I guess if she said they come on by themselves with traffic on coming I would look for any faults in that camera. It gets listed on the networks as IPMA (image processor module A). There's is a U code that thing stores that I usually just replace the camera for. Can't remember the code # but it's description calls it an internal module failure. Which in a lot of systems doesn't necessarily mean what it says. But in this system it's usually a fucked up camera.
I said user error earlier because a lot of times when I ask the customer they describe the system as not turning off the bright lights when cars are oncoming. So they are telling me they have the brights on and the car is not dimming them. The system is over ridden when you turn on the bright lights, the car will never second guess how much light you need at any given time. When auto high beams are activated in the menu then the car takes total control of high beams. It turns them on when it's dark enough and when it has turned them on, it will turn them off for on coming traffic.

 

[gimebakmybulits]

Auto high beams uses the camera up in the rear view mirror trim covers. I guess if she said they come on by themselves with traffic on coming I would look for any faults in that camera. It gets listed on the networks as IPMA (image processor module A). There's is a U code that thing stores that I usually just replace the camera for. Can't remember the code # but it's description calls it an internal module failure. Which in a lot of systems doesn't necessarily mean what it says. But in this system it's usually a fucked up camera.
I said user error earlier because a lot of times when I ask the customer they describe the system as not turning off the bright lights when cars are oncoming. So they are telling me they have the brights on and the car is not dimming them. The system is over ridden when you turn on the bright lights, the car will never second guess how much light you need at any given time. When auto high beams are activated in the menu then the car takes total control of high beams. It turns them on when it's dark enough and when it has turned them on, it will turn them off for on coming traffic.

Thank you!
She had auto high beams enabled in the menu so I disabled them. What she described is an intermittent but fairly frequent case of them being turned on at speed with oncoming traffic present and then her having to manually turn them off or it failing to recognize new oncoming and not automatically turning them off. In both scenarios she's had oncoming traffic close enough that they would flash her.

 

[discostew]

I think in 2011 the software running auto high beams left a little to be desired. I have to drive cars home with those types of complaints. Maybe a software update will help. I even notice that the L405 Range Rover seems to be more sensitive to dimming them than the Disco5. Seems like the L405 will dim them when you come up to an intersection with no traffic but lots of reflective signs. Those systems are still evolving, 2011 was a pretty early system.