[Malapropism]

Originally Posted by henry418

Probably because almost all US cars with sport/M-sport have oil coolers and they are the ones primarily tracking the car. For normal conditions, the car is fine although the temp is a little high for my liking. (I reach 130C in hot weather and AC on)

This.

We might see more of these issues pop up once more Canadians get N55 Xdrives

[BMW_Belgier]

Yes i have an oil cooler! It is standard on all euro 335's.

I know from a lot of N54's that have massive problems when they track or drive high speed autobahn (>5min +200km/h). No problems known of N55'...

[wanlong]

Mine does not have sport/msport and no oil cooler

[Bladerunner]

I've got 2011 M-Sport and no oil coller, a little disappointed. Running at 120c!

[ericlol]

ya same here, i dont have msport though

which brand is good for after market oil cooler? I dont think there are any thats specifically designed for N55

[wdlfbio]

2012 335xi and no aux cooler. Took a pic of my oil temp gauge during normal driving. 77F degrees outside. The oil temp gauge was just over
250F (121C).

[ericlol]

I just did a short distance cruise on the weekend, the temperature runs constantly at 120 degree or 250 F, if you park the car and go near the hood, you will feel the heat.

So whats a good after market brand oil cooler for N55?

[wdlfbio]

I'm going to give the wetter water method a try before I drop $1k+ (USD) on an aftermarkert oil cooler. If that doesn't work, I'll have to stick to shorter autoX runs instead of tracking.

I don't think we've heard about too many N55s overheating because they're just haven't been very many hitting the track in the summer yet. I suspect that will change this summer.

[henry418]

Originally Posted by wdlfbio

I'm going to give the wetter water method a try before I drop $1k+ (USD) on an aftermarkert oil cooler. If that doesn't work, I'll have to stick to shorter autoX runs instead of tracking.

I don't think we've heard about too many N55s overheating because they're just haven't been very many hitting the track in the summer yet. I suspect that will change this summer.

Please report back if water wetter helps with oil temp!

[ericlol]

Originally Posted by henry418

Please report back if water wetter helps with oil temp!

what's a water wetter

[wdlfbio]

Originally Posted by ericlol

what's a water wetter

Water wetter and MoCool are coolant additives to reduce engine temps during HPDEs. Usually mixed at some ratio with distilled water. Lots of info on the topic in the tracking forum.

[Madhouse]

It's just the X-drives in Canada that don't come with the oil cooler. This was a big consideration why I ordered the RWD 335. That and not having to order the m-sport package and still getting the suspension and brake upgrades.

[ericlol]

Originally Posted by Madhouse

It's just the X-drives in Canada that don't come with the oil cooler. This was a big consideration why I ordered the RWD 335. That and not having to order the m-sport package and still getting the suspension and brake upgrades.

whats your engine temperature at in the summer?


is everyone else feeling comfortable with engine temperature of 120-125C?

[drevil2k2]

During the late May hot temperatures in Ontario - the temp was reading 120-122.

Mind you it was highway driving for over 1 hour with the PPK 1. I don't really like running at that temp - so maybe a Stage 2 kit may help.

[BMW_Belgier]

Originally Posted by drevil2k2

During the late May hot temperatures in Ontario - the temp was reading 120-122.

Mind you it was highway driving for over 1 hour with the PPK 1. I don't really like running at that temp - so maybe a Stage 2 kit may help.

You don't the second stage of the PPK! You have to get a extra oil cooler and you are good

Don't forget that 120 Celcius still is normal temp for our 335's

[Malapropism]

Originally Posted by wdlfbio

I'm going to give the wetter water method a try before I drop $1k+ (USD) on an aftermarkert oil cooler. If that doesn't work, I'll have to stick to shorter autoX runs instead of tracking.

I don't think we've heard about too many N55s overheating because they're just haven't been very many hitting the track in the summer yet. I suspect that will change this summer.

Hey did you end up trying the wetter water method yet?

[henry418]

Originally Posted by Malapropism

Hey did you end up trying the wetter water method yet?

I tried it (not 100% distilled water though). It did help the oil temperature cool down faster but didn't stop it from reaching the limp mode temp. Basically, didn't work

[Malapropism]

Originally Posted by henry418

I tried it (not 100% distilled water though). It did help the oil temperature cool down faster but didn't stop it from reaching the limp mode temp. Basically, didn't work

[wdlfbio]

Haven't tried it yet. But we r in Austria doing a euro delivery on a Z4 35 is, which is the N54 with increased water and oil cooler and time (compared to 35i and 335i). I drove the Grossglocker in 37-50F temps and it still ran just over 255F. The engines are designed to run hot. But it was weird that the N54 ran hotter than my N55 while back home.

[Malapropism]

Went to track yesterday in sunny, humid and hot 28 degree Celsius weather. Would only manage 3-4 HARD laps with Map 1 of JB4 on before limp mode would kick in. Two cool down laps would bring the oil temps back down to around 120 degree Celsius temperatures though but still definitely need an oil cooler.

[henry418]

Originally Posted by Malapropism

Went to track yesterday in sunny, humid and hot 28 degree Celsius weather. Would only manage 3-4 HARD laps with Map 1 of JB4 on before limp mode would kick in. Two cool down laps would bring the oil temps back down to around 120 degree Celsius temperatures though but still definitely need an oil cooler.

Bought the ER Sport oil cooler +retrofit kit from Mike@N54tuning.. I have track day on July 11th+12th so I'll let you know if this fixes it (probably will). $1500 installed

[Malapropism]

Originally Posted by henry418

Bought the ER Sport oil cooler +retrofit kit from Mike@N54tuning.. I have track day on July 11th+12th so I'll let you know if this fixes it (probably will). $1500 installed

Nice! What made you choose this over OEM? I'm still debating between the two as they are similar prices for me. In any case, your car should be rock solid now!