E90 with MHD tune
Discussion
I have a 335i and am very interested in flashing the ECU with the MHD tune.
I have no experience of this and don't own an android device or have a cable etc. I previously tried a JB4 with mixed results
Can someone who has done this, please advise me in idiot level language, what bits I need, where to get them from, and likely costs.
I am based near Brighton, if someone is local and could help out
Many thanks
I have no experience of this and don't own an android device or have a cable etc. I previously tried a JB4 with mixed results
Can someone who has done this, please advise me in idiot level language, what bits I need, where to get them from, and likely costs.
I am based near Brighton, if someone is local and could help out
Many thanks
crusty said:
I have a 335i and am very interested in flashing the ECU with the MHD tune.
I have no experience of this and don't own an android device or have a cable etc. I previously tried a JB4 with mixed results
Can someone who has done this, please advise me in idiot level language, what bits I need, where to get them from, and likely costs.
I am based near Brighton, if someone is local and could help out
Many thanks
I'd be pm this guy, I've watched his threads over on e90 post when I had a 335i and I'm certain he did MHD.I have no experience of this and don't own an android device or have a cable etc. I previously tried a JB4 with mixed results
Can someone who has done this, please advise me in idiot level language, what bits I need, where to get them from, and likely costs.
I am based near Brighton, if someone is local and could help out
Many thanks
He's very knowledgable.
https://www.pistonheads.com/gassing/profile.asp?h=...
Smuler said:
I'd be pm this guy, I've watched his threads over on e90 post when I had a 335i and I'm certain he did MHD.
He's very knowledgable.
https://www.pistonheads.com/gassing/profile.asp?h=...
Thanks for the recommendation.He's very knowledgable.
https://www.pistonheads.com/gassing/profile.asp?h=...
I haven't MHD'd mine yet though. Still yet to actually do it
My advice would be to jump over into E90post.com.
All of the information you need is on there.
There are a couple of "verified" D Can cables from people like cableshack and bmcables etc.
Process is pretty easy. Get the app and buy the maps, flasher license and logging license.
Get a cable, plug it in and away you go.
Cost wise the app licenses come to about £150 and cables can be anywhere from £10 to £50.
I've not done mine as it's fast enough for how much I currently drive it but there is a lot on E90post about it.
All of the information you need is on there.
There are a couple of "verified" D Can cables from people like cableshack and bmcables etc.
Process is pretty easy. Get the app and buy the maps, flasher license and logging license.
Get a cable, plug it in and away you go.
Cost wise the app licenses come to about £150 and cables can be anywhere from £10 to £50.
I've not done mine as it's fast enough for how much I currently drive it but there is a lot on E90post about it.
Edited by Dannbodge on Friday 13th October 17:42
Get a bottle of wine and read this http://www.e90post.com/forums/showthread.php?t=109...
On top of a cable and battery charger you will also need a USB on the go adapter - Maplin do these, they're a little more expensive than eBay specials, but they work rather than being hit and miss.
When you do the first flash, it will back up the stock .bin file to the storage on the phone. Make a further backup of this! The first flash takes about 20-30 minutes as it rewrites the full DME firmware (BMW speak for engine ECU). This is where you need the charger as noted above. FYI opening doors interrupts the flash, so wind the window down, and from outside the car set the flash going, leaving the phone/tablet on the seat. Then you're not stuck in the car for half an hour (!)
The maps come in stages, with the Stage 1 pack you also get the Stage 1+ maps which need an intercooler. The Mishimoto intercooler is the best bet as it fits with no adaptations. The maps are then further subdivided into octane rating. There are other nice options like linear throttle map.
Do beware that the maps up the boost significantly, and also give you the option of undoing the BMW wastegate rattle fix which gives much better throttle response. The main issue with this is it will show up anything that's wrong with the engine, so rattly wastegates, leaky vacuum lines, failing boost solenoids, cracked charge pipes, shot coil packs, injectors on their way out, spark plugs that need changing, etc... Buy the logging module for MHD and it should help track down any issues.
Even with Stage 1 98 octane it's fast - it pulls really hard. Stage 1+ looks like would a happy place to be, as heat soak starts to set in after a few runs up through the rev range. In my view the Stage 2 maps (which need catless downpipes and an intake system) probably push the turbos too hard. At the boost demanded (something like 18psi) they're starting to get inefficient.
On top of a cable and battery charger you will also need a USB on the go adapter - Maplin do these, they're a little more expensive than eBay specials, but they work rather than being hit and miss.
When you do the first flash, it will back up the stock .bin file to the storage on the phone. Make a further backup of this! The first flash takes about 20-30 minutes as it rewrites the full DME firmware (BMW speak for engine ECU). This is where you need the charger as noted above. FYI opening doors interrupts the flash, so wind the window down, and from outside the car set the flash going, leaving the phone/tablet on the seat. Then you're not stuck in the car for half an hour (!)
The maps come in stages, with the Stage 1 pack you also get the Stage 1+ maps which need an intercooler. The Mishimoto intercooler is the best bet as it fits with no adaptations. The maps are then further subdivided into octane rating. There are other nice options like linear throttle map.
Do beware that the maps up the boost significantly, and also give you the option of undoing the BMW wastegate rattle fix which gives much better throttle response. The main issue with this is it will show up anything that's wrong with the engine, so rattly wastegates, leaky vacuum lines, failing boost solenoids, cracked charge pipes, shot coil packs, injectors on their way out, spark plugs that need changing, etc... Buy the logging module for MHD and it should help track down any issues.
Even with Stage 1 98 octane it's fast - it pulls really hard. Stage 1+ looks like would a happy place to be, as heat soak starts to set in after a few runs up through the rev range. In my view the Stage 2 maps (which need catless downpipes and an intake system) probably push the turbos too hard. At the boost demanded (something like 18psi) they're starting to get inefficient.
lostmotel said:
Get a bottle of wine and read this http://www.e90post.com/forums/showthread.php?t=109...
On top of a cable and battery charger you will also need a USB on the go adapter - Maplin do these, they're a little more expensive than eBay specials, but they work rather than being hit and miss.
When you do the first flash, it will back up the stock .bin file to the storage on the phone. Make a further backup of this! The first flash takes about 20-30 minutes as it rewrites the full DME firmware (BMW speak for engine ECU). This is where you need the charger as noted above. FYI opening doors interrupts the flash, so wind the window down, and from outside the car set the flash going, leaving the phone/tablet on the seat. Then you're not stuck in the car for half an hour (!)
The maps come in stages, with the Stage 1 pack you also get the Stage 1+ maps which need an intercooler. The Mishimoto intercooler is the best bet as it fits with no adaptations. The maps are then further subdivided into octane rating. There are other nice options like linear throttle map.
Do beware that the maps up the boost significantly, and also give you the option of undoing the BMW wastegate rattle fix which gives much better throttle response. The main issue with this is it will show up anything that's wrong with the engine, so rattly wastegates, leaky vacuum lines, failing boost solenoids, cracked charge pipes, shot coil packs, injectors on their way out, spark plugs that need changing, etc... Buy the logging module for MHD and it should help track down any issues.
Even with Stage 1 98 octane it's fast - it pulls really hard. Stage 1+ looks like would a happy place to be, as heat soak starts to set in after a few runs up through the rev range. In my view the Stage 2 maps (which need catless downpipes and an intake system) probably push the turbos too hard. At the boost demanded (something like 18psi) they're starting to get inefficient.
They don't push the turbo's too hard. I think on the logs when I was Stage 2+ it was maxing at 17.5 PSI. The stock snails can take more than that. Stage 1 is 12-13PSI AFAIK.On top of a cable and battery charger you will also need a USB on the go adapter - Maplin do these, they're a little more expensive than eBay specials, but they work rather than being hit and miss.
When you do the first flash, it will back up the stock .bin file to the storage on the phone. Make a further backup of this! The first flash takes about 20-30 minutes as it rewrites the full DME firmware (BMW speak for engine ECU). This is where you need the charger as noted above. FYI opening doors interrupts the flash, so wind the window down, and from outside the car set the flash going, leaving the phone/tablet on the seat. Then you're not stuck in the car for half an hour (!)
The maps come in stages, with the Stage 1 pack you also get the Stage 1+ maps which need an intercooler. The Mishimoto intercooler is the best bet as it fits with no adaptations. The maps are then further subdivided into octane rating. There are other nice options like linear throttle map.
Do beware that the maps up the boost significantly, and also give you the option of undoing the BMW wastegate rattle fix which gives much better throttle response. The main issue with this is it will show up anything that's wrong with the engine, so rattly wastegates, leaky vacuum lines, failing boost solenoids, cracked charge pipes, shot coil packs, injectors on their way out, spark plugs that need changing, etc... Buy the logging module for MHD and it should help track down any issues.
Even with Stage 1 98 octane it's fast - it pulls really hard. Stage 1+ looks like would a happy place to be, as heat soak starts to set in after a few runs up through the rev range. In my view the Stage 2 maps (which need catless downpipes and an intake system) probably push the turbos too hard. At the boost demanded (something like 18psi) they're starting to get inefficient.
The trouble with the maps is there just generic maps. They are good for the price, but id always recommend a custom remap if your FBO i.e Stage 2+. For Just a map think MHD stage 1 is great.
BTW iam at 455bhp at just 18.6 PSI tapering down to 16PSI. That's the difference from a proper tune.
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