[49er]

Can you remove prior to dealer service ? And reinstall

[MJDBMW]

You can flash back to stock anytime, but if a failure occurs the dealer (or bmw) can see it was previously flashed. If a big ticket item fails, you can be sure they will look.

[GT500R]

Originally Posted by 49er

Can you remove prior to dealer service ? And reinstall

Correct, I installed stock config and locked DME for an O2 recall where BMW needed to flash my DME.

No issues, no word, nothing in terms of BMW mentioning anything.

[skioutwest]

I decided to get the BM3 for my recently leased X4M. I was really hesitant to go the flash route, as my previous three vehicles all had JB4s, but the way I look at it, if you have a major issue they can detect ANY type of tune and deny the claim.

I also never took the JB4 hardware off the car prior to going to the dealer. It was just a pain in the ass. At least with the BM3 you can flash to stock and relock....

-Mark

[sd306]

Originally Posted by skioutwest

I decided to get the BM3 for my recently leased X4M. I was really hesitant to go the flash route, as my previous three vehicles all had JB4s, but the way I look at it, if you have a major issue they can detect ANY type of tune and deny the claim.

I also never took the JB4 hardware off the car prior to going to the dealer. It was just a pain in the ass. At least with the BM3 you can flash to stock and relock....

-Mark

Just review your logs after flashing GT500R and I have had poor timing with our Shell 93 V-Power gas which is supposed to be wonderful, but doesn't appear that way.

[FSociety]

For regular dealer maintenance such as oil change most ppl don't flash back to stock
But if you don't have a mod friendly dealer, then its recommended to flash back to stock a few days prior so that way you do a few Wide Open Throttle on stock tune

[Psypher]

Originally Posted by FSociety

For regular dealer maintenance such as oil change most ppl don't flash back to stock
But if you don't have a mod friendly dealer, then its recommended to flash back to stock a few days prior so that way you do a few Wide Open Throttle on stock tune

What about with a catless downpipe? Seems flashing back to stock will throw a check engine light for missing cats? Do you guys just avoid the dealers and get maintenence at a independent shop?

[FSociety]

Originally Posted by Psypher

What about with a catless downpipe? Seems flashing back to stock will throw a check engine light for missing cats? Do you guys just avoid the dealers and get maintenence at a independent shop?

A lot of ppl pay an Indy Shop that's experienced with European cars since not everyone lives near a BMW dealership. But also the need of having to flash back to stock and relock ECU a few days prior dealer ship may or not be a thing for some others.

CEL for Cats will show up but you can still clear it 5-10 miles before you arrive at Dealer.

[AlexFL]

Originally Posted by Psypher

Do you guys just avoid the dealers and get maintenence at a independent shop?

YES