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Discussion Starter · #1 ·
Hello,


Since last year (june) I have a MCS (in volcanic orange, great colour by the way). Only these days I realized that, in sport mode, and ONLY in sport mode, when the engine is above 3000 RPM and I lift my foot from the gas pedal, it makes some sort of a metallic noise, creak or something under the front of the car. Transmission is auto.


Anybody else had this problem? The noise is like a crunch, squeak or something and it seems like it's coming from the right side in front of the car. It lasts for about half a second it is not continuous.


It only has 10.000 km (6300 miles) on it. I repeat, it only comes when in sport mode and only when I accelerate fast and lift my foot from the pedal.


Is it normal? You belive it is the front part of the exhaust?


Thank you and excuse me if I wasn t very clear but I'm not that great in english :)
 

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Hello,


Since last year (june) I have a MCS (in volcanic orange, great colour by the way). Only these days I realized that, in sport mode, and ONLY in sport mode, when the engine is above 3000 RPM and I lift my foot from the gas pedal, it makes some sort of a metallic noise, creak or something under the front of the car. Transmission is auto.


Anybody else had this problem? The noise is like a crunch, squeak or something and it seems like it's coming from the right side in front of the car. It lasts for about half a second it is not continuous.


It only has 10.000 km (6300 miles) on it. I repeat, it only comes when in sport mode and only when I accelerate fast and lift my foot from the pedal.


Is it normal? You belive it is the front part of the exhaust?


Thank you and excuse me if I wasn t very clear but I'm not that great in english :)
have a look on youtube for videos relating to the "mini cooper s blow off valve" noise and see if it is what you are experiencing. If it is, it is normal
 

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Discussion Starter · #4 · (Edited)
have a look on youtube for videos relating to the "mini cooper s blow off valve" noise and see if it is what you are experiencing. If it is, it is normal

Hello,


No, it's not like that. It only happens when the car is moving, and only when I lift my foot from the gas pedal quickly.


Let's say I press the pedal to the floor and I lift my foot quickly and the engine remains on high revs, like when you use the engine brake on manual cars. That's when the creaking sound appears.


It's like a squeak coming from the right suspension side, I don't know how to describe it, but I know that it is not the suspension because it only happens in sport mode and I don t have the adaptive suspension.
 

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The engine wants to twist on its mountings in reaction to the torque it is producing, more throttle application with sport mode means more torque induced engine movement. When the throttle is lifted the engine will move, or tend to turn, back in the opposite direction.

Perhaps this movement is causing some parts of the engine or ancilliaries to come into contact with other components?

It shouldn't happen if everything is where it should be with enough clearance, but a soft engine mounting in an older car can give these symptoms.

I would ask the dealer to check it, you don't want things rubbing against each other under the bonnet in case they cause a worse problem.
 

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Discussion Starter · #6 · (Edited)
The engine wants to twist on its mountings in reaction to the torque it is producing, more throttle application with sport mode means more torque induced engine movement. When the throttle is lifted the engine will move, or tend to turn, back in the opposite direction.

Perhaps this movement is causing some parts of the engine or ancilliaries to come into contact with other components?

It shouldn't happen if everything is where it should be with enough clearance, but a soft engine mounting in an older car can give these symptoms.

I would ask the dealer to check it, you don't want things rubbing against each other under the bonnet in case they cause a worse problem.

It's almost exactly how you described it, like something wants to move in there. I talked with the dealer and strangely they want me to pay for them to determine what's wrong with it, although the car is under guarantee, because on the phone they say it's normal and also they said something about the exhaust and how it is normal for creaks under the engine when in sport mode. I'll pay them a visit and see what happens.
Maybe I'll take their drive test cooper S to see if it is as normal as they say.
 

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Discussion Starter · #8 · (Edited)
i'll have a play in mine & see if i can re-create this

Great,


Just put it in sport mode, put the stick in S, press the pedal down (not necessarly to the floor) and lift your foot off it fast for the engine to remain under high revs and let's see if that creak happens in yours too.


Thank you
 

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Tried this on the way home with the sunroof open and couldnt hear anything other than the usual turbo chatter. I tried lifting off as you suggested at 3k and 4k revs in sports mode with the gear selector in M/S
 

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The car doesn't produce anymore torque in Sport mode. The overboost function works equally in green, mid and sport modes. If you have MINI connected you can see this for yourself as the car tells you how much power and torque it is generating.


Therefore if it is only happening in Sport mode, personally I would exclude any significant issues such as engine mounts.


In sport mode, I've identified five different additional sounds:


1. Exhaust bubbles and pops on overrun;
2. Exhaust 'farts' when changing gear after being at full throttle briefly, but from relatively low revs in the gear you are changing from;
3. The synthesized engine note from within the car;
4. The turbo hiss, which is more noticeable when you lift off; and
5. Something that sounds like "a squeaking rubber slowing metal down" for a split second, again when lifting off.


I'm not sure, mechanically speaking, what this last sound is and it may be what you're experiencing, but I quite like it and I'm not worrying! :)
 

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It's almost exactly how you described it, like something wants to move in there. I talked with the dealer and strangely they want me to pay for them to determine what's wrong with it, although the car is under guarantee, because on the phone they say it's normal and also they said something about the exhaust and how it is normal for creaks under the engine when in sport mode. I'll pay them a visit and see what happens.
Maybe I'll take their drive test cooper S to see if it is as normal as they say.
Good idea.
Unexplained noises from a powerful car need to be proved to be normal, or rectified, for safety reasons if nothing else.
 

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Discussion Starter · #12 · (Edited)
I programmed it for a visit at the dealer next week. As I read more I' m starting to think it's the blow off valve because it only happens in sport mode. The only thing is that this is not a blowing sound but more of a squeaky metallic sound.
I'll see what the dealer tells me.

Also, one more thing: the car now has 10200 km (6500 miles on it) and the computer says I should change the oil in 10.000 km (6000 more miles). I know it was talked here before and it's a controversial subject, but do you think I should change the oil now and not wait the full cycle the car calculated? I asked the dealer about this and they said not to worry about it, to wait until the car tells me to change it because it's a waste of money to change it now.
Here in Europe an oil change is a lot more expensive at the dealer than in the states for example. (Around 200 euro for the oil, air filter and oil filter)

Thank you
 

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'Here in Europe an oil change is a lot more expensive at the dealer than in the states for example. (Around 200 euro for the oil, air filter and oil filter)'


Socialism will do that. It's coming to the US.
 

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Hello,


Since last year (june) I have a MCS (in volcanic orange, great colour by the way). Only these days I realized that, in sport mode, and ONLY in sport mode, when the engine is above 3000 RPM and I lift my foot from the gas pedal, it makes some sort of a metallic noise, creak or something under the front of the car. Transmission is auto.


Anybody else had this problem? The noise is like a crunch, squeak or something and it seems like it's coming from the right side in front of the car. It lasts for about half a second it is not continuous.


It only has 10.000 km (6300 miles) on it. I repeat, it only comes when in sport mode and only when I accelerate fast and lift my foot from the pedal.


Is it normal? You belive it is the front part of the exhaust?


Thank you and excuse me if I wasn t very clear but I'm not that great in english :)
Hey, have you fixed the issue? Today I was driving home, almost at midnight and there were no cars on the street and was very quiet. I noticed the same sound and started searching the web and came across your post.
 

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The car doesn't produce anymore torque in Sport mode. The overboost function works equally in green, mid and sport modes. If you have MINI connected you can see this for yourself as the car tells you how much power and torque it is generating.


Therefore if it is only happening in Sport mode, personally I would exclude any significant issues such as engine mounts.


In sport mode, I've identified five different additional sounds:


1. Exhaust bubbles and pops on overrun;
2. Exhaust 'farts' when changing gear after being at full throttle briefly, but from relatively low revs in the gear you are changing from;
3. The synthesized engine note from within the car;
4. The turbo hiss, which is more noticeable when you lift off; and
5. Something that sounds like "a squeaking rubber slowing metal down" for a split second, again when lifting off.


I'm not sure, mechanically speaking, what this last sound is and it may be what you're experiencing, but I quite like it and I'm not worrying! :)
Hey, I replied to the original poster, but haven't received any replies. Maybe that person is not active anymore. When you made these 5 points above, did you test it on your vehicle? Few days ago I started noticing this too, never had this before. I have a thread on northamericanmotoring dot com (the post #4479469 ), but I can't post links yet :( I have attached audio file there too
 

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The engine wants to twist on its mountings in reaction to the torque it is producing, more throttle application with sport mode means more torque induced engine movement. When the throttle is lifted the engine will move, or tend to turn, back in the opposite direction.



Perhaps this movement is causing some parts of the engine or ancilliaries to come into contact with other components?



It shouldn't happen if everything is where it should be with enough clearance, but a soft engine mounting in an older car can give these symptoms.



I would ask the dealer to check it, you don't want things rubbing against each other under the bonnet in case they cause a worse problem.


Powerflex engine mount! Can recommend!


Sent from my iPhone using Tapatalk Pro
 
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