335d e92 Remap Nerves
Discussion
Hi All,
Apologies if this should fall under another string somewhere. I couldn't see anywhere with the answers I'm after.
I am considering a remap for my 56plate e92 335d.
I am nervous about it though as I can't afford to kill the car or damage the engine.
Does anyone have experience of remapping a 335d?
Does anyone have any thought on remapping in general (to stage 1 only)
Is there any kind of remapping certification or governing body that a remapper should be signed up to?
Thanks in advance.
Jack335d
Apologies if this should fall under another string somewhere. I couldn't see anywhere with the answers I'm after.
I am considering a remap for my 56plate e92 335d.
I am nervous about it though as I can't afford to kill the car or damage the engine.
Does anyone have experience of remapping a 335d?
Does anyone have any thought on remapping in general (to stage 1 only)
Is there any kind of remapping certification or governing body that a remapper should be signed up to?
Thanks in advance.
Jack335d
Pica-Pica said:
You asked for viewpoints. I personally would not. I have the 309ps version, but I believe that the torque through the transmission is the limiting factor 700Nm is the limit, I believe, and 630Nm Is what mine currently is. IMHO one buys the car for the torque.
Thanks for your comment. I absolutely value everyone's views on this. I'm still thinking about it all and mulling it over. Keen to hear all thoughts and ideas. 
Just a quick question to the OP, have you carried out a comprehensive health check on the engine before considering tuning? A decent service and a full check of items like the vacuum pipes, intercooler pipe work and the cooling system isn’t a bad idea before adding stress to the engine. Get the car scanned to make sure that there are no faults.
Has the gearbox been serviced? if not get the fluid changed ASAP as this can kill the ‘box especially if your going to shunt more power through it.
Has the gearbox been serviced? if not get the fluid changed ASAP as this can kill the ‘box especially if your going to shunt more power through it.
Edited by Huskyman on Thursday 19th November 10:03
Having had one that was mapped by the previous owner and then removed when I bought it at 18 months old, I wouldn't bother.
The car is fast enough already and when running right is really good.
However with age and mileage that engine has many issues which will only be exacerbated by mapping it in my opinion.
Mine eventually started using a lot of oil at around 130K and needed an engine rebuild (I sold before the rebuild and was upfront about the oil issue).
The car is fast enough already and when running right is really good.
However with age and mileage that engine has many issues which will only be exacerbated by mapping it in my opinion.
Mine eventually started using a lot of oil at around 130K and needed an engine rebuild (I sold before the rebuild and was upfront about the oil issue).
Charlie Croker mk2 said:
Search "Nutjob" on YouTube , he tuned his 330d and ran its crank bearings shortly after . Just an aside but when have you ever found a 335d lacking in get up and go ?
That was an ex police F11 530d N57 with 170k miles on it. It shat itself on the dyno unsurprisingly. It had previously snapped its chain as well and fair play to nut job he fixed it on the drive. Probably not the best example for a tune! I always thought the E9x was the M57 engine for the 335d?Huskyman said:
Just a quick question to the OP, have you carried out a comprehensive health check on the engine before considering tuning? A decent service and a full check of items like the vacuum pipes, intercooler pipe work and the cooling system isn’t a bad idea before adding stress to the engine. Get the car scanned to make sure that there are no faults.
Has the gearbox been serviced? if not get the fluid changed ASAP as this can kill the ‘box especially if your going to shunt more power through it.
Exactly this - there's more than enough things to fix before I'd think about tuning - specifically, boost leaks, faults and vacuum leaks.Has the gearbox been serviced? if not get the fluid changed ASAP as this can kill the ‘box especially if your going to shunt more power through it.
Then I'd think about the gearbox - check the adaptations to gauge wear.
...then I'd be looking at remapping it.
EDIT - I say that as someone with a 335d whos working through the above - the gearbox looks bad so I need to address that first unless I want a big bill.
Charlie Croker mk2 said:
Search "Nutjob" on YouTube , he tuned his 330d and ran its crank bearings shortly after . Just an aside but when have you ever found a 335d lacking in get up and go ?
That was an N57. The crank bearings fail on standard engines. Re 335d tuning I wouldn’t bother but we all like to do different things to our cars. (My current 18 year old 330d is tuned, only because I wanted more torque/power-I have no plans for it’s replacement, an E91 335d.)Personally I don't see too many issues with remapping. You're unlikely to use the extra performance all the time, so risks to doing engine/transmission damage is limited, but it is a risk. Can you afford to replace the engine and or transmission without too much bother? If yes, then crack on, if not then maybe hold off for a bit.
If you do want to go for it, go with one of the more established tuners, you do get what you pay for with this sort of thing.
If you do want to go for it, go with one of the more established tuners, you do get what you pay for with this sort of thing.
I remapped my 2009 335d - Emaps did the tune.
Was noticeably quicker (and a tiny bit more fuel efficient as an added bonus).
Can't comment on much else as it got stolen a few months later.....
If you are concerned about killing the engine I would probably just leave it alone. As others have said they are pretty quick standard anyway.
Was noticeably quicker (and a tiny bit more fuel efficient as an added bonus).
Can't comment on much else as it got stolen a few months later.....
If you are concerned about killing the engine I would probably just leave it alone. As others have said they are pretty quick standard anyway.
The fact is, any performance modification, including a remap, WILL put increased wear and tear on various engine components and other moving parts.
If your primary concern is reliability and it’s vital that the car doesn’t go bang, and you wouldn’t be able to afford to repair a big bill... I’d steer clear.
It’s really quite simple.
If your primary concern is reliability and it’s vital that the car doesn’t go bang, and you wouldn’t be able to afford to repair a big bill... I’d steer clear.
It’s really quite simple.
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