Sabretooth tiger
///Member
akash said:
Well said, does not matter what BMW deem their SW and after market SW adds to your car. Fact is, they control your MP, an WILL cancel it (not a part of it, but the entire MP), if detected.
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Read the WELCOME ALL BMWFANATICS post.
JB4 on F80 M3
- Thread starter babyboss
- Start date
Well said, does not matter what BMW deem their SW and after market SW adds to your car. Fact is, they control your MP, an WILL cancel it (not a part of it, but the entire MP), if detected.
Sabretooth tiger
///Member
MaX said:
I searched the web, and cant seem to find a concrete answer, if they can or cant. So I took the easy route and just left it.
I will look at it once off plan, else I might throw money away now, cause my car was more expensive than one without MP, when I bought it.
$nivz330d$
New member
The thing is that gents , you need to take 2 things into consideration and this is coming from bmw themselves :
1. no dealer can just inspect your car without your authorization and they cannot assume your car has been moddified.
2. they can only do the test on your vehicle if something went wrong in the engine bay or the engine blew , then they will go into it to find out why the engine blew,
***Edited by mod...
1. no dealer can just inspect your car without your authorization and they cannot assume your car has been moddified.
2. they can only do the test on your vehicle if something went wrong in the engine bay or the engine blew , then they will go into it to find out why the engine blew,
***Edited by mod...
Quick///M
Well-known member
from every single beemer forum I was on i never read anything bad about JB4 I do find that the support for this product is beyond amazing, with Terry himself helping guys out directly by checking up on their logs :thumbs: Now that for me is already a piece of mind
Also great support from this forum too!
Also great support from this forum too!
Kimeran
///Member
The most important thing is to get a tuner who has a close relationship with a dealer.
Had a friend who popped both turbos after sw, sent it to BMW and was changed without hassle(sw was never removed).
Just before he sold the car, turbos were going again, not sure if he sent it back for the turbos before he sold the car though
Had a friend who popped both turbos after sw, sent it to BMW and was changed without hassle(sw was never removed).
Just before he sold the car, turbos were going again, not sure if he sent it back for the turbos before he sold the car though
Speedy
Member
Read again, he is saying "get a tuner" who has a close relationship.
End if the day if BMW SA request data or investigation, a relationship will only get you so far.
Ultimately if you remove the unit and clear codes you should have no problem getting your annual service covered by M-plan, that's in and out for them, however blow and engine or pop a turbo questions will be asked and depending on how deep they go you will surely run into trouble.
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End if the day if BMW SA request data or investigation, a relationship will only get you so far.
Ultimately if you remove the unit and clear codes you should have no problem getting your annual service covered by M-plan, that's in and out for them, however blow and engine or pop a turbo questions will be asked and depending on how deep they go you will surely run into trouble.
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Derrick125
New member
Kimeran said:
You point out some important things here, which I don't believe are in dispute:
1. The risk of failure increases with performance gains.
2. The tuner does not carry the cost of such failure.
Fact is, you buy a tune at a bargain price, because you can't claim against failure.
BMW charges shit-loads for motorplan and ACS because THEY DO cover failure.
I think our first consideration should be the risk of failure (which I beleive is high), then, whose gonna pay!
Quick///M
Well-known member
There are tons of guys running JB4 trust me some of them don't broadcast it on Forums, I have even spoke to guys with who had more than 2 x bmw's running JB4 told me it causes no issues and it was not detected when the car went in for service... But then again you Pay to Play
Furthermore ACS is more aggressive apparently
Furthermore ACS is more aggressive apparently
Ok so here's the deal. No-one can make an absolute promise that anything is "undetectable". Technically it is actually but it's not possible to guarantee that. The JB can be removed, faults deleted etc, and there will be ZERO trace that it was in.
The FASTA thing is misleading, they cannot check what boost the car ran. FAST can check if you exceeded any limiters & it logs those specific events. It can't check boost live or recorded. If you have a fault like underboost/overboost then that fault is logged (not necessarily even with FASTA), but faults like that can occur even on a stock car. If you have a tear in your vacuum hose, it can throw a "boost theshold - lower limit" fault. Doesn't mean the car is modded. Even limp mode faults or misfires can happen on stock cars.
The only faults that prove a car is modded is the "tuning manipulation" fault but all the tuners have licked that a long time ago. And also the dealer can't check that the map is changed if you have a flash tune. Absolute hogwash. Dealers don't have tools to go into the code of the map and see what bits and bytes are different to a stock map. They can't even see what's in the map. Al they can do is check faults, update firmware, etc.
But bottom line, absolute bottom line is that is is your car. You are paying for it. If you have ANY doubt, any fear of losing your plan, then don't mod it. It's that simple. But don't go blaming tuners or BMW or your neighbour's cat if you lose plan. I know of people that lost their plan on stock cars. So if you choose to mod accept that there is a possibility you may lose your plan & live with it because you want the extra power.
The FASTA thing is misleading, they cannot check what boost the car ran. FAST can check if you exceeded any limiters & it logs those specific events. It can't check boost live or recorded. If you have a fault like underboost/overboost then that fault is logged (not necessarily even with FASTA), but faults like that can occur even on a stock car. If you have a tear in your vacuum hose, it can throw a "boost theshold - lower limit" fault. Doesn't mean the car is modded. Even limp mode faults or misfires can happen on stock cars.
The only faults that prove a car is modded is the "tuning manipulation" fault but all the tuners have licked that a long time ago. And also the dealer can't check that the map is changed if you have a flash tune. Absolute hogwash. Dealers don't have tools to go into the code of the map and see what bits and bytes are different to a stock map. They can't even see what's in the map. Al they can do is check faults, update firmware, etc.
But bottom line, absolute bottom line is that is is your car. You are paying for it. If you have ANY doubt, any fear of losing your plan, then don't mod it. It's that simple. But don't go blaming tuners or BMW or your neighbour's cat if you lose plan. I know of people that lost their plan on stock cars. So if you choose to mod accept that there is a possibility you may lose your plan & live with it because you want the extra power.
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