Exhausts and Engine » Limp Home Mode?

Yesterday my bike went into what I assume was limp home mode. 3 miles after I left the house it started stuttering and slowed down. Ended up riding back home in 1st gear. It continued to shudder, would not rev, and would not go over 20 mph. I parked it and turned it off and back on and the problem went away.

The keyless ignition had acted flaky the day before. When I push the power button it would not go in to the self check mode. Only the keyless idiot light came on. After a few attempts it fired up and ran fine for a 80 mile run up Mt Lemmon.

The bike is a ‘16 with about 5,000 mi on it. I had problem at about 600 mi. 3 miles into a ride a car pulled out in front of me. I braked hard and the bike stalled. Took it to the nearest BMW dealer and got a no trouble found report.

I had it towed to the local dealer, Iron Horse.

Anyone else have a similar experience?

If they don’t find a problem I will be reluctant about ridding this bike. Especially on twisty mountain roads like Mt Lemmon.

The key symbol and no diagnostic start up would point to the battery in the remote but the engine issues not that.

Ged

Battery in the bike and key fob were replaced in October ‘19.

I’ll leave that to the dealer since they now have the bike and they installed the battery.

Will an intermittent battery connection generate a fault code?

The bike has a bad position sensor on one of the throttle bodies. That put it in to limp home mode. New sensor is on order. Hopefully I’ll get the bike back Saturday.

Bikes back. Runs good. All under warranty 😁

This limp mode is a safety hazard. Bike went into limp mode while tucking back in after passing transport truck on a narrow two lane highway, no power, resulting rapid deceleration right in front If the truck. Switching bike off clears limp mode. Diagnosis showed throttle sensor fault code, not recurring. Dealer advised this was not unusual, limp mode designed to protect engine. Problem is it does so by creating a riding hazard. Response should be a warning light, not shutting the bike down.

Could not agree more. I was lucky I was on a secondary road with light traffic. The road home on a busier with lots of upset drivers behind me. I can imagine a real risk if this happened on the interstate or a curved mountain road.

If they don’t find a problem I will be reluctant about ridding this bike. Especially on twisty mountain roads like Mt Lemmon.
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Hi Leest. Last week my RS went into limp mode for the first time. It's an 18 model with 21,800 miles. This happened in the gas station after filling up, fortunately, because I was in Payson on my way to Phoenix (I'm sure you know the area) and there are pretty fast sweepers down the mountain. Anyhow, I took it to the dealer down here and after six days with them in communication with BMW they could not find anything, so now I have just have to play the dice! Like you, I will never be confident with this bike again.

I hope they fins something to fix in your bike.

Good luck,
Distrito

If they don’t find a problem I will be reluctant about ridding this bike. Especially on twisty mountain roads like Mt Lemmon.
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Hi Leest. Last week my RS went into limp mode for the first time. It's an 18 model with 21,800 miles. This happened in the gas station after filling up, fortunately, because I was in Payson on my way to Phoenix (I'm sure you know the area) and there are pretty fast sweepers down the mountain. Anyhow, I took it to the dealer down here and after six days with them in communication with BMW they could not find anything, so now I have just have to play the dice! Like you, I will never be confident with this bike again.

I hope they fins something to fix in your bike.

Good luck,
Distrito

Engine Fault Warning Light (2)

How did things workout with your repairs?