ND RF Battery Drain.

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ND RF Battery Drain.

Postby Enjay » Sat May 12, 2018 12:35 am

This has been discussed in a few threads on the national forum but I thought that it was worth reporting here too just in case it helps someone.

Short version: If you have an RF, had cruise control active and not disengaged the system when you parked and then left your car for a couple of weeks, you could come back to a completely flat battery.

This pistonheads thread has a lot of information:
https://www.pistonheads.com/gassing/top ... &t=1710223

Anyway, I experienced the problem about a month or so after taking ownership of my RF. At the time, I got a bit of a fob-off answer from Arnold Clark. "The car has been in the showroom and had a bit of a start-stop life so maybe the battery hasn't had a chance to fully charge" (I'd driven it to Glasgow and back by this time BTW) and "the battery is quite small and modern cars are very technical so they are likely to discharge more quickly than older cars". Ahem!

Anyway, as noted in the above linked thread, Mazda acknowledged the problem in a worldwide service bulleting back in December:

Service Bulletin R087/17 published on December 26, 2017 from Mazda HQ “ RF Engine will not start due to Battery being discharged ”

Pretty sure this is a copy of it:

https://www.miata.net/garage/tsb/RF%20E ... harged.pdf



Since then, it appears a software fix has been released, some UK drivers have had it applied to their cars and it seems to work. My car is going in for a service next week so I'll ask about the fix and I'll report back what happens.


I *think* the dates of affected models are from introduction to about May of last year. My car certainly falls into that timespan.
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Re: ND RF Battery Drain.

Postby Enjay » Mon May 14, 2018 7:54 pm

I don't have the car back yet simply because I can't get to the dealer to pick it up for a few days but they did the service today. They confirmed that there was a warranty notice on the car and that it was indeed the battery charge issue. I couldn't speak to anyone who could tell me what was done but I expect it to be the software fix.


Anyway, the upshot is that if you have an RF made from introduction to May 2017, it is very likely to be affected by this but Mazda have acknowledged the problem and put out warranty notices. So, if you have a vehicle in the affected range, it would be a good idea to speak to your dealer to have the fix applied.


If I get any more information about it, I'll post that too.
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Re: ND RF Battery Drain.

Postby Gavin » Tue May 15, 2018 8:11 am

Sounds like the quality reply from Arnie C. After buying my first 5 from them in Stirling 20 years ago I haven't been back. If a service manager can't tell the difference between leather and vinyl why would you trust them with your car? I stick with a small family run dealership in Falkirk. You get more sense out of them.
2009 Convertible Coupe 2.0L Sport now that the 2005 LE and 2007 Z Sport Limited are dead.
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Re: ND RF Battery Drain.

Postby Enjay » Tue May 15, 2018 5:42 pm

I've had a mixed experience with Sir Arnie. My experience with a Citroen C1 that I bought was that the sales team weren't the best but the 2 year service plan that I got with is was superb, as was everyone I dealt with surrounding that. My jury is out on how well things are going with the MX5. There have been both good and bad but nothing terrible. so far, a neutral experience.


Anyway, a member of the UK forum posted that they had received a "Special Service Campaign" letter from Mazda relating to this issue at the weekend. I received mine today (amusingly, 24 hours after I'd got it addressed myself). So, it seems as if Mazda are getting proactive on this. Any owners of affected vehicles should, I assume, be contacted soon.

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