sport mode - exhaust not working?

smg800 · Jan 31, 2015

Hello gents. Driving along the motorway earlier in mc shift mode and suddenly the exhaust goes quiet as if back in normal mode. Since then it's intermittently been on and off so to speak. Have tried the sport button and the trusty off and back on again (I.e parked up and switched the car off, keys out the ignition etc). Any ideas? Many thanks.

bigbob · Jan 31, 2015

Mine is doing the at the moment. If you look on the inside of the back boxes and slightly back you will see a vacuum pipe running into an accuator. You need to spray the mechanism with WD40 as bizarrely Maserati left the valve fully exposed to the elements. It could really do with being boxed in.

Felonious Crud · Jan 31, 2015

^^^ what BB said. Same experience, same resolution.

hodroyd · Jan 31, 2015

It's a design thing, the idea is you get to know your car better by crawling around underneath, simples..!!

smg800 · Feb 1, 2015

Thank you chaps, this has indeed fixed the problem. The continual quirks of an Italian car haha. Thanks again.

bigbob · Feb 1, 2015

Result. Hope you enjoyed getting dirty.

hodroyd · Feb 1, 2015

At least we can hear you coming now..??

EXCF350 · Feb 2, 2015

I noticed that mine had stuck this weekend but had stuck in the loud position so that's fine with me! I only ever take it out of sport mode when passing horses or on a long motorway journey. I did however get the WD40 out when I got home.

JonKelCal · Jun 24, 2015

Totally new here, but would this work for a 2010 Maserati Quattroporte S? Just got my first Maserati and totally in love. I notice a huge difference in driving performance when "sport button" is engaged, but not noticing any difference in sound. I am wondering if my exhaust flaps are stuck. To be clear, these are the flaps you are referring to, correct?

http://www.automobilesreview.com/uploads/2009/05/normal-mode-e28093-flaps-closed.jpg

Here is my ride.

ChrisQP09 · Jun 24, 2015

JonKelCal said:
Totally new here, but would this work for a 2010 Maserati Quattroporte S? Just got my first Maserati and totally in love. I notice a huge difference in driving performance when "sport button" is engaged, but not noticing any difference in sound. I am wondering if my exhaust flaps are stuck. To be clear, these are the flaps you are referring to, correct?

http://www.automobilesreview.com/uploads/2009/05/normal-mode-e28093-flaps-closed.jpg

Here is my ride.
View attachment 29789

Hi I suspect these are the flaps yes. Perhaps loosen them up with some WD40 or similar.

Steve GS · Jun 24, 2015

Just thought as in case mine get sticky one day but is wd40 just a short turm fix as it's not a lubricant and drys out.

ChrisQP09 · Jun 24, 2015

Steve GS said:
Just thought as in case mine get sticky one day but is wd40 just a short turm fix as it's not a lubricant and drys out.

try lithium grease

StuartW · Jun 24, 2015

You certainly don't want them to be stuck shut

Felonious Crud · Jun 24, 2015

JonKelCal - I love your car! Great colour combo.

WD40 is short term. My valves decided to lock shut trough Arnage last week as I was merrily blasting the throttle for the amusement of innocent bystanders. And then *. For no apparent reason they closed shut and stayed closed. Quiet as a mouse. Wouldn't reopen until I drove home some hours later. Bizarre. I'm off to get some lithium grease. Thanks for the tip, Chris.

hodroyd · Jun 25, 2015

You could even use such as Copper-Ease, the sort of stuff you can get for brakes, does not dry out due to heat..!!

VMSRTI · Jun 25, 2015

JonKelCal said:
Totally new here, but would this work for a 2010 Maserati Quattroporte S? Just got my first Maserati and totally in love. I notice a huge difference in driving performance when "sport button" is engaged, but not noticing any difference in sound. I am wondering if my exhaust flaps are stuck. To be clear, these are the flaps you are referring to, correct?

http://www.automobilesreview.com/uploads/2009/05/normal-mode-e28093-flaps-closed.jpg

Here is my ride.
View attachment 29789

And what a lovely ride she is!
Welcome JonKelCal.

StuartW · Jun 26, 2015

Thanks for the tip guys, I will be applying some precautionary grease too - I'd be devastated if the valves were stuck closed

Contigo · Jun 26, 2015

AdamN said:
JonKelCal - I love your car! Great colour combo.

WD40 is short term. My valves decided to lock shut trough Arnage last week as I was merrily blasting the throttle for the amusement of innocent bystanders. And then *. For no apparent reason they closed shut and stayed closed. Quiet as a mouse. Wouldn't reopen until I drove home some hours later. Bizarre. I'm off to get some lithium grease. Thanks for the tip, Chris.

No wonder you could hear mine over yours when we got on the Euro Tunnel!!!

Felonious Crud · Jun 26, 2015

Contigo said:
No wonder you could hear mine over yours when we got on the Euro Tunnel!!!

It was ok again by then, Phil. Weirdest thing. I'll use some lube other than WD40. Some bike chain lube may be better stuff.

StuartW · Jul 1, 2015

bigbob said:
Mine is doing the at the moment. If you look on the inside of the back boxes and slightly back you will see a vacuum pipe running into an accuator. You need to spray the mechanism with WD40 as bizarrely Maserati left the valve fully exposed to the elements. It could really do with being boxed in.

I can't quite see where you mean BB, do you have a photo to explain the section that I need to lubricate?
Many thanks

sport mode - exhaust not working?

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