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      02-24-2013, 10:47 AM   #903
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Originally Posted by Killerfish2012 View Post
Coolant temp isn't over heating at 104, or 107C. In fact depending on how you are driving, or the ambient temps, it can be quite normal. Get a scanner, and check for trouble codes, if none are present, I wouldn't worry. If you are above 75K miles on the odometer, change your water pump, and thermostat.
It is overheating though, i get the amber then red warning symbols, my coolant temp shoots up to 120+ deg C, but after shutting the car down for about 1 minute the temp drops down to around 100 deg C and the fault clears.

Everything points to it being the coolant sensor or the pump, but BMW have said they are fine, so I am at a loss as to what else it could be
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      02-24-2013, 11:09 AM   #904
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Originally Posted by millseyent View Post
It is overheating though, i get the amber then red warning symbols, my coolant temp shoots up to 120+ deg C, but after shutting the car down for about 1 minute the temp drops down to around 100 deg C and the fault clears.

Everything points to it being the coolant sensor or the pump, but BMW have said they are fine, so I am at a loss as to what else it could be
What is your mileage, and how old is the car? Looks a lot like a failing water pump to me, as this is exactly what happened to me. Could also be a failing fan. So you need to buy a code reader like the peak scan tool, and pull the code to find out what component is wrong. Guessing at it, isn't the right approach.
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      02-24-2013, 11:14 AM   #905
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easiest if you have INPA is to run a test on the water pump. if you choose 90% dutycycle and it cannot keep up than its shot. I tested mine and it can hold 90 no problems .
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      02-24-2013, 11:34 AM   #906
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Originally Posted by Killerfish2012 View Post
What is your mileage, and how old is the car? Looks a lot like a failing water pump to me, as this is exactly what happened to me. Could also be a failing fan. So you need to buy a code reader like the peak scan tool, and pull the code to find out what component is wrong. Guessing at it, isn't the right approach.
79 k- 2006 Reg, why didn't BMW pick up the issue??
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      02-24-2013, 11:39 AM   #907
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Originally Posted by millseyent View Post
79 k- 2006 Reg, why didn't BMW pick up the issue??
Like enrita eluded to, the pump might be failing, not failed. I don't even go to BMW for my repair issues. 75K is the common mileage for water pump replacement. Replace it, or wait until it completely fails. It's up to you.
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      02-24-2013, 01:34 PM   #908
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Originally Posted by Killerfish2012 View Post
Like enrita eluded to, the pump might be failing, not failed. I don't even go to BMW for my repair issues. 75K is the common mileage for water pump replacement. Replace it, or wait until it completely fails. It's up to you.

Cheers mate, trust me i won't be going to BMW again, massive waste of space!!!
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      04-07-2013, 02:51 PM   #909
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Went to an open track day at Texas World Speedway, 4 hours of track time between 1pm-5pm. Track is open, go on and off as you like.

So I'm running stock turbos with VRSF downpipes, FMIC and exhaust, and a Cobb AP. Running a custom map based on the Stage 2+ Agressive Map. Basically put load down around 150 below 4000rpm, 190 between 4000 and 5200, and then tapering off after that. After 6000 doesn't matter, I shift @ 6000 mostly. So it's a 17-18psi map in the boost parameter. I also bumped timing about 2 degrees throughout the range and then put a couple gallons of 98 in with each fillup.

Car ran great, I was on the track for 2 hours out of the 4 hours. I also have the stett stage 2 oil cooler, but running stock coolant. Ambient temps were about 75F. No limp modes whatsoever, car was a beast. Oil temps didn't go over 270, though they stayed about 260-270 the whole time on the track.

I replaced the inlet Vanos solenoid last week, due to an inlet vanos limp mode I got.

These cars can do it. Have faith.

Last edited by DallasBoosted; 04-07-2013 at 03:43 PM.
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      04-11-2013, 10:35 PM   #910
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Quote:
Originally Posted by DallasBoosted View Post
These cars can do it. Have faith.
You sure you had no limp modes, on your last track event?:

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Cobb: Any chance of disabling the underboost codes so that we can simply bypass the stock boost control system? Set it @ 18 or 20 psi or whatever in the DME and then use an EBC to control boost? The DME would still respond to the actual boost (just like it does if you underboost currently) but if it just didn't code/limp then it would enable the EBC usage with external wastegates etc.
How hard is it to simply reset ECU learning per session? The DME has 101 ways to ruin your track event. For one thing since Cobb isn't a complete flash, the ECU is still in economy mode. Read the N54 Engine manual to fully understand how our car works. I know you want the vehicle to have a false squeaky clean image, but all the pages/threads on this forum, tell a different story.
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      04-12-2013, 07:30 AM   #911
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Quote:
Originally Posted by Killerfish2012 View Post
You sure you had no limp modes, on your last track event?:
At this open track day at TWS, no limp modes. I got a 30FF when I blew off an intercooler hose at MSR 3 weeks ago, and I got a Vanos inlet code for which I replaced the solenoid.

Quote:
Originally Posted by Killerfish2012 View Post
How hard is it to simply reset ECU learning per session? The DME has 101 ways to ruin your track event. For one thing since Cobb isn't a complete flash, the ECU is still in economy mode. Read the N54 Engine manual to fully understand how our car works. I know you want the vehicle to have a false squeaky clean image, but all the pages/threads on this forum, tell a different story.
You're right, I have an agenda to promote the 335i. You caught me.

I've been nothing but detailed in what limp modes and what problems my car has had, and what has solved them. There is way too much "the car just can't do X" type crap here. It is definitely temperamental but it seems to me these issues are fixable. I'm going to another open track day in 2 weeks, guess we'll see if another 2 hours of track time in 4 hours can break the car.
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      04-12-2013, 09:31 AM   #912
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Quote:
Originally Posted by DallasBoosted View Post
There is way too much "the car just can't do X" type crap here. It is definitely temperamental but it seems to me these issues are fixable.

I opened this thread almost 3 years ago, if I had followed the advice given earlier on (I'm slow, what can I say) I would have spent very little money on cooling compared to the time and money I lost fighting limp modes. Now that the 335i is retired from track duty, I'm only hoping I won't be as stubborn with the new car...

One more thing, if I were to do it again, I'd drop all the power mods and focus on balance and weight. For the last year or so I've disabled all power mods and yet my lap times have dropped significantly. Added bonus: no limp modes!

This car can do anything you want it to do at the track, the earlier you prepare for cooling the more on-track time you'll have

Last edited by mid-corner fun; 04-12-2013 at 09:37 AM.
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      04-12-2013, 10:19 AM   #913
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Originally Posted by mid-corner fun View Post
I opened this thread almost 3 years ago, if I had followed the advice given earlier on (I'm slow, what can I say) I would have spent very little money on cooling compared to the time and money I lost fighting limp modes. Now that the 335i is retired from track duty, I'm only hoping I won't be as stubborn with the new car...

One more thing, if I were to do it again, I'd drop all the power mods and focus on balance and weight. For the last year or so I've disabled all power mods and yet my lap times have dropped significantly. Added bonus: no limp modes!

This car can do anything you want it to do at the track, the earlier you prepare for cooling the more on-track time you'll have
IMHO, you should have kept your 335I. Cooling aside, We are now able to track it without much issues with the Cobb AP. We both were using piggys when we started this thread, because flash tunes were 2+grand at that time. Cobb came along, was initially a mess, but has great off the shelf tunes now for the masses.
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      04-12-2013, 10:59 AM   #914
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Quote:
Originally Posted by Killerfish2012 View Post
IMHO, you should have kept your 335I. Cooling aside, We are now able to track it without much issues with the Cobb AP. We both were using piggys when we started this thread, because flash tunes were 2+grand at that time. Cobb came along, was initially a mess, but has great off the shelf tunes now for the masses.
You completely missed my point. I could care less about the Cobb or any other flash or piggy back tune, what I'm stating is that the extra power is not necessary at the track. Invest the money in driver training instead.
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      04-12-2013, 12:01 PM   #915
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You completely missed my point. I could care less about the Cobb or any other flash or piggy back tune, what I'm stating is that the extra power is not necessary at the track. Invest the money in driver training instead.
That's what I'm going to do. I don't ever plan on tuning my car, but I will invest in some cooling mods and driver training. I just don't want to break my car. That's my only goal.
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      04-12-2013, 01:15 PM   #916
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Originally Posted by DallasBoosted View Post
I've been nothing but detailed in what limp modes and what problems my car has had, and what has solved them. There is way too much "the car just can't do X" type crap here. It is definitely temperamental but it seems to me these issues are fixable. I'm going to another open track day in 2 weeks, guess we'll see if another 2 hours of track time in 4 hours can break the car.
Those of us making these statements have owned the vehicle far longer than you have, and it is because of their efforts that we can even track the car at all today. Afterall, the very first online review of this vehicle pitted it against a meager G37, which it lost to for throwing a non-temp related unknown limp mode. Thanks to the efforts of guys like enrita, and autobahn335I, and even Mid corner fun, we are able to track this car. Old school guys are well within their right to bash the vehicle for its many flaws. Afterall the car was never designed to be tracked by BMW, and they did several things at the design stage to make it painful for those who tried.
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      04-12-2013, 01:16 PM   #917
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You completely missed my point. I could care less about the Cobb or any other flash or piggy back tune, what I'm stating is that the extra power is not necessary at the track. Invest the money in driver training instead.
I wasn't commenting on your point, more on your personal choice of next vehicle. If its the M3, then be aware of the bearing issues. My friend has already had to replace them at only 50K miles, because of his track use.
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      04-12-2013, 01:20 PM   #918
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The tune available now (being able to properly fuel with the Cobb) really makes a big difference, seems like the car is much less trouble than it used to be.
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      04-12-2013, 01:22 PM   #919
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Quote:
Originally Posted by Killerfish2012 View Post
Those of us making these statements have owned the vehicle far longer than you have, and it is because of their efforts that we can even track the car at all today. Afterall, the very first online review of this vehicle pitted it against a meager G37, which it lost to for throwing a non-temp related unknown limp mode. Thanks to the efforts of guys like enrita, and autobahn335I, and even Mid corner fun, we are able to track this car. Old school guys are well within their right to bash the vehicle for its many flaws. Afterall the car was never designed to be tracked by BMW, and they did several things at the design stage to make it painful for those who tried.
Not really disagreeing with anything here, just stating my experience. Hopefully thats okay with you. Sorry for not PM'ing to get your clearance to post on this forum.
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      04-12-2013, 03:30 PM   #920
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The tune available now (being able to properly fuel with the Cobb) really makes a big difference, seems like the car is much less trouble than it used to be.
Actually, Dinan and GIAC were trouble free way back when. They just charged an arm and a leg, so most folks stuck with piggy backs, which the stock ecu, abused on the track. Dinan technically made the best tune even though they never did one for people with catless downpipes, cuz they wanted to stay CARB legal. Dinan's tune addressed deep seeded issues, such as the ecu being in economy mode, and thus insisting on oil temps of 245F+ for optimal combustion. Dinan, was able to increase water pump speed, for example, something that Cobb simply can't do, even today. What cobb did was give us the ability to flash the car, with free, and customizable maps, in a hand held flash tune, for <$700. Very nice, but you can't compare it to a full flash tune like Dinan's or Renntech.
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      04-12-2013, 03:31 PM   #921
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Not really disagreeing with anything here, just stating my experience. Hopefully thats okay with you. Sorry for not PM'ing to get your clearance to post on this forum.
Just loose the attitude, cuz were're all here doing our part to help. From those that compiled the aftermarket oil cooler data, to the vendors, and tuners, we're all here to help each other. Respect other peoples opinions, thats all.
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      04-12-2013, 11:52 PM   #922
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The tune available now (being able to properly fuel with the Cobb) really makes a big difference, seems like the car is much less trouble than it used to be.
This was the very first review of this vehicle that was posted online, year Late 06, or 07. Brand New 335I 6mt, with factory oil cooler. Oil temps were fine, and after a warm up lap, it went into limp mode. Limp Mode? Now its stock boost, and we know nothing can be wrong with the vehicle (vanos solenoids, etc), so WTF happened? Whatever the deal, everyone and their dead grandpa saw this video back in the day. All the stuff you are writing 7 years later, isn't going to do much.

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      04-13-2013, 08:57 AM   #923
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Quote:
Originally Posted by Killerfish2012 View Post
This was the very first review of this vehicle that was posted online, year Late 06, or 07. Brand New 335I 6mt, with factory oil cooler. Oil temps were fine, and after a warm up lap, it went into limp mode. Limp Mode? Now its stock boost, and we know nothing can be wrong with the vehicle (vanos solenoids, etc), so WTF happened? Whatever the deal, everyone and their dead grandpa saw this video back in the day. All the stuff you are writing 7 years later, isn't going to do much.

And tell me what difference that makes to people tracking the vehicle now?
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      04-13-2013, 10:34 PM   #924
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And tell me what difference that makes to people tracking the vehicle now?
None, except when you try and lie about its performance, and tell people older than you to "have faith".
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