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I am assuming many people have already faced the alternator issue as of now. The g310 bikes were launched in July 2018. So far we have various owners reporting bikes refusing to start or battery light glowing on the console and it has been just 5 months which is too premature for a motorcycle to show such issues.
So we have decided to write to BMW motorrad so that they acknowledge this particular issue and announce a recall for all g310 owners worldwide.
We have complained about this issue to BMW motorrad India but it has taken this issue lightly and we feel they are not escalating to BMW motorrad Germany. So let's try writing emails to BMW motorrad or through social media so that BMW motorrad designs a fix for this issue.
Personally, I have not faced this issue yet but I guess it may happen to any one of us in the future.
Sorry for the long message.
 

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The above message is on behalf of all BMW g310 owners in Bangalore, India. We had many reports of the problem and there have been few people who were stranded km the middle of the road as the bike refused to start. So we feel its pretty serious.
 

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thanks for the info.
I experienced the alternator isuue on on both my previous BMW the F800S and Xcountry.
Hoped BMW learned the lesson but seems not the case.
I'm ordering a voltmeter to monitor voltage arriving from alternator to the battery, but this does not solve the problem...
 

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I am assuming many people have already faced the alternator issue as of now. The g310 bikes were launched in July 2018. So far we have various owners reporting bikes refusing to start or battery light glowing on the console and it has been just 5 months which is too premature for a motorcycle to show such issues.
So we have decided to write to BMW motorrad so that they acknowledge this particular issue and announce a recall for all g310 owners worldwide.
We have complained about this issue to BMW motorrad India but it has taken this issue lightly and we feel they are not escalating to BMW motorrad Germany. So let's try writing emails to BMW motorrad or through social media so that BMW motorrad designs a fix for this issue.
Personally, I have not faced this issue yet but I guess it may happen to any one of us in the future.
Sorry for the long message.
Can you describe the nature of the alternator issues you have had?

I have had cold start/battery issues and suspected the alternator may have been an issue after the bike failed to stay on after a jump start.
 

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As far as the dealer would tell me....

The alternator (or more probably generator) developed a fault that caused the battery to die deep discharge. Both were replaced using parts from an unsold bike, after waiting 2 weeks for parts to not arrive.

I had just done an 350 km intercity dash that went very well. Next morning, the state was unresponsive at first, then managed to start the motor.
Ambient Temp was in the the mid 20 degrees C ( around 70 F for you Anglo Americans still using that antique measuring system).

Since I had forgotten to turn the key off after lowering the stand while in gear, I assumed battery was low because of my negligence, and expected the generator would replenish the battery on the reverse trip.

Well, 100 km later, while arriving at a stop sign, the motor just died. I managed to restart once and, maybe 1 km later, it just died again.
After making basic trouble shooting (checking the fuses, and Batt connections, it was clear the batt was dying (....time to call roadside assistance and a tow back.

Funny thing was that on that exact day, on the other side of the continent, member Zente was having the exact same experience in California. With the same resolution, but 2 weeks earlier than me.

That's all I have to say about that (thank you Forrest Gump)

RobertB
 

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is it the stator failing or the regulator/ rectifier that fails??
the stator would be engine specific, the regulator rectifier failing you could adapt a regulator rectifier from a different make and model bike.
first generation triumph tigers tend to have R&R issues and the popular fix is to use the R&R from a yamaha R1.
 

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yes, it is not clear to me if it the stator of the regulator.
On F800 series the stator was an issue (I has it gone on my F800S) BMW had to re-design itbut no recall was issues.

To prevent stator failure the best solution was to substitute the OEM regulator with a Shindengen SH775
Here some explanations regolatore tensione - www.belinassu.it but in italian unfortunately...
Ohterwise look here
https://www.roadstercycle.com/index.htm

On my G650X-country I had the regular fault (and two batteries gone) and by replacing it with a Shindengen SH775, the problem was solved.

I realized that the regulator failure in some cases can be detected by installing a basic voltmeter, a high variability in the V provided from the regulator to the battery is not a good signal.
On the contrary a SH775 regulator will ensure a stable output, but better will prevent burning of stator.

That said I do not know whether an SH775 can be used on G310. Cabling and mounting are not the same, some work is needed.
 

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My G310 R is a 2018 model but I’ve had it since September of 2017. When I first got it it was outside as I was living in an apartment. The temperatures that winter got as low as 24°F. I never experienced the cold start issue or any issues with the battery dying. Only thing I’ve had was the gear indicator showing “-“.
 

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As far as the dealer would tell me....

The alternator (or more probably generator) developed a fault that caused the battery to die deep discharge. Both were replaced using parts from an unsold bike, after waiting 2 weeks for parts to not arrive.

RobertB
Why would it be a generator?

Motorcycles moved to alternators in the 1960s...
 

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Geländer,

My bad, electric machines courses too long ago... I confused the use of permanent magnets vs induced coils to make the spinning mag field with the stator vs rotor generation of the definition.

So yes it is a alternator. But it still failed and let me stranded...albeit not in the middle of nowhere.
 

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I had my g310r Stator die on me 2 hours away from home, it was a nice time pushing the bike back from the middle of no where at 12:30am. Hopefully you get a reply to your email as it's a horrible situation to be in.
 

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More people are joining the list of breakdowns. Hope bmw is aware of what's going on.
My bike is just over 2 months old and i have done just about 400 km so far as i am not a daily rider. However, i have been riding it at least 20-30 km per week. When i contacted Tuskar BMW service with regard to the first service (usually due in 1000 km or 1 month, whichever is earlier), they advised me to delay the service as the vehicle has not done the expected distance yet.

On December 1st, 2018, while I was on the way for a breakfast ride, the battery sign came on and the vehicle stalled shortly after. I called RSA and the vehicle was towed to Tuskar Service for checks. Tuskar could check my vehicle only on the following Monday and in the evening I was told that the battery had drained completely and the same was fixed by charging the battery. I was also blamed for not doing the First Service on time and told that this could be the root cause of the problem.

Following this, I requested Tuskar Service to do a thorough check of the vehicle and do the service of the vehicle (I had even asked them to make it a paid service, in case there is a need). I wanted them to give a confirmation that there is no problem with the bike. Tuskar service was initially reluctant to do the service as it was not a regular pre-scheduled one. They went on to threaten me that i will be charged Parking Fees if the vehicle is not picked up. Subsequently, they agreed on doing a full check up and service of the vehicle. On Wednesday (5th Dec) evening, I was told that the vehicle is serviced, ready and no other issue was found on inspection.

I took the delivery of the vehicle on Thursday (6th Dec). There was a charge of INR 5510 for the service which i paid and then was on my way. So far so good, one would think! One off case and all good now! One would hope!

On Friday evening (7th Dec), I took the bike out again. After riding it for about 3 kms, ABS light came on. Then, the battery light came on and the vehicle stalled. Like in the first case, the headlight, console, etc. were working, but vehicle would not start. I called RSA again, the vehicle was picked up around 9:30 PM and taken to Tuskar Service. On 11th Dec i got confirmation that the alternator of the bike needs to be replaced and that it will be done in 2-3 weeks.

They did further investigations on the wiring of the bike on 14th dec and shared the diagnosis that the issue is with Voltage regulator, same was changed and recalibarated and subsequently the vehicle was returned on 21st Dec.

There are two separate posts in the riding group that 3 bikes are down this week itself because of battery issues.

Bit sad, testing the patience of owners and their luck.
 

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Why would it be a generator?

Motorcycles moved to alternators in the 1960s...
it is a generator that produces alternating current due to , generators use permanent magnets while alternators use regulated current to produce the magnetic field some bikes do have automotive style alternators. my Kawasaki ZRX1100 has a 40 amp alternator.
 

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Yesterday I couldn't start the bike in the evening. No starter response, although I could hear and feel relay clicking. This was at work, so left the bike parked. Touch some tools today and the battery shows 10.5v cold and 8.5v when key is turned on. Put a jump-start pack, and it started. Battery current stayed at 8.5v. It was okay to run at higher revs, but died as soon as I let it idle. Tried it a couple of times and same result.

It's going to the dealer tomorrow for official diagnosis, but I have feeling it's the stator that died and now battery is dead. We'll find out in a few days. At least it was parked in a place that I can leave it overnight.
 

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Yesterday I couldn't start the bike in the evening. No starter response, although I could hear and feel relay clicking. This was at work, so left the bike parked. Touch some tools today and the battery shows 10.5v cold and 8.5v when key is turned on. Put a jump-start pack, and it started. Battery current stayed at 8.5v. It was okay to run at higher revs, but died as soon as I let it idle. Tried it a couple of times and same result.

It's going to the dealer tomorrow for official diagnosis, but I have feeling it's the stator that died and now battery is dead. We'll find out in a few days. At least it was parked in a place that I can leave it overnight.
one of the ways to check if the battery is actually charging is after starting the bike connect it to multimeter give some throttle, and it should be around 14V if my memory serves me well.
 

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one of the ways to check if the battery is actually charging is after starting the bike connect it to multimeter give some throttle, and it should be around 14V if my memory serves me well.
That is what I thought I had said that I did. Multimeter was connected when I started the bike and remained connected when I revved the engine. Voltage remained at 8.5v from key turn, engine idling, to revving it and keeping at 3/4k rpm. No change. But when I left it to idle, it just died in 2 seconds.

Since revving the engine did not brighten the headlamp (older weaker battery will show a difference), nothing happens. Jump pack attached is the time when headlight really brightens up properly.

I've played around enough with Jeeps and electric winches to know when the charge system is not working.

My only hope is that they have the parts or I can score a loaner bike.
 

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I read lots of owners having issues with alternator and waterpump included myself. There must be something not right with the design or made or quality control in the plant. Why BMW seems relax and dont show any interest in maintaining confidence among the owners? Time to move to japanese bike my friends...... Sayonara BMW.
 
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