Macan S Exhaust Drone

Engine, Exhaust, Drivetrain, ECU Issues and Fixes
AllanG
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Post by AllanG »

I’ve recently bought a used 2020 Macan S, and one thing I’ve noticed when driving on the motorway at the legal limit is the exhaust drone from the rear of the car...this is quite a deep constant sound.

My car has the standard ‘S’ exhaust system.

As this is my first experience of owning a Macan, can any other S’ owners confirm if this is the same with their car, and is there any way of reducing the drone, apart from turning your music up lol!!
Allan
2023 Macan S in Crayon

Tracky
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Joined: Fri Feb 22, 2019 10:26 pm

Post by Tracky »

Can’t say I’ve noticed anything to be fair - I find ours a good long distance companion.

2019 S with PSE
On order

GT4 RS

Current

2019 992 S
2019 Macan S
2014 Modified Lotus Exige V6
2022 Seat Ibiza 1.0 (115ps) DSG Excellence Lux(dog’s!)
1987 928S4
1967 Jag Mk2 3.4

Ex

2012 Boxster S
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gmacan
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Post by gmacan »

Drive at 80? :lol:

Pls forgive my sense of humour. But no, don't notice such problems, myself. Too quiet, if anything, virtually unnoticeable.

But is it a drone? Could be a vibration of some sort if something dislodged from proper position or not held in place properly.

Have you checked out all the obvious - towbar in correct rest position if you have one, spare wheel/jack securely in place if you have one, toolkit held in situ in wheelwell area ok, exhaust hooks all suspending correctly?
Etc etc.
Macan S, MY16 64k mls, dechromed, PASM, BiXenons, PDLS+, heated 18way sports hardbacks, 20" SportDesign rims/PZeroNeros.
Ex:
Alfa Brera S Prodrive
Porsche 911 C4 factory-lowered(M033)
Porsche968 Sport
Audi S4 quattro Avant biturbo
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AllanG
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Location: Southampton

Post by AllanG »

I haven’t yet checked the exhaust mounts, but as I don’t have a tow bar or spare wheel, I can rule these two suggestions out, however, the wheel brace and air compressor are secure. I have already booked the car in with my OPC for them to take a look.
Allan
2023 Macan S in Crayon
AllanG
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Joined: Fri Oct 02, 2020 8:00 am
Location: Southampton

Post by AllanG »

I checked the rear exhaust system mounts this morning, and all appear to be secure, however, I did notice that the exhaust flap valve on the offside outer most pipe was fully open with the engine off, but I don’t know of this is normal? Having seen this flap valve, I am now wondering if this is operating correctly and could it be the source of the drone I’m experiencing?
Allan
2023 Macan S in Crayon
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Nuclear Nick
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Location: Bristol

Post by Nuclear Nick »

AllanG wrote: Sat Nov 28, 2020 3:51 pm I checked the rear exhaust system mounts this morning, and all appear to be secure, however, I did notice that the exhaust flap valve on the offside outer most pipe was fully open with the engine off, but I don’t know of this is normal? Having seen this flap valve, I am now wondering if this is operating correctly and could it be the source of the drone I’m experiencing?
Does that flap remain open with a warm engine? Might be worth having someone else start the car, outside with a cold engine, while you check which pipes are open. Check the pipes during a couple of minutes warm up to see if the discharge switches over and the noise changes. Car should be in normal drive mode.
Nick

Defender 90 V8

991.2 C2 GTS

Macan Turbo - sold

BMW K1300S, BMW R1250 GSA
reynard
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Joined: Sat Nov 21, 2020 2:41 pm

Post by reynard »

Hi nick, I have a 2015 turbo, I paid to have the sport exhaust fitted, for what it cost it is crap, also noticed the other day, upon start up, put it in sport exhaust mode, only one valve opens, took it to Porsche and they said the other valve opens at a certain revs, u personally think it’s bullshit, because you have two completely different back pressures in the boxes till the other valve opens, this does not seem right.
Tracky
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Post by Tracky »

reynard wrote: Sat Nov 28, 2020 7:17 pm Hi nick, I have a 2015 turbo, I paid to have the sport exhaust fitted, for what it cost it is crap, also noticed the other day, upon start up, put it in sport exhaust mode, only one valve opens, took it to Porsche and they said the other valve opens at a certain revs, u personally think it’s bullshit, because you have two completely different back pressures in the boxes till the other valve opens, this does not seem right.
Doesn’t the other valve open after the warm up stage - seems to be what happens on both of mine.
On order

GT4 RS

Current

2019 992 S
2019 Macan S
2014 Modified Lotus Exige V6
2022 Seat Ibiza 1.0 (115ps) DSG Excellence Lux(dog’s!)
1987 928S4
1967 Jag Mk2 3.4

Ex

2012 Boxster S
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Paul
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Post by Paul »

A bit of info here on exhaust flaps opening etc....

viewtopic.php?f=20&t=3416&p=88823&hilit ... lap#p88823
1st Sapphire SD
2nd Sapphire GTS
viewtopic.php?f=23&t=4296
Current 992 S Cab
viewtopic.php?f=23&t=9845&p=196465#p196465
macanapb
Posts: 21
Joined: Tue Feb 05, 2019 9:11 am

Post by macanapb »

I have a 2019 Macan S and can confirm after testing that when starting the car on "Sport" only the right valve open. The same valve is indeed closed when starting in "Normal" mode. I don't have the PSE, so no pops and bangs...
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