MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: nadlad on November 23, 2012, 02:44:48 pm

Title: Dreaded police siren
Post by: nadlad on November 23, 2012, 02:44:48 pm
2008 27k on clock with mild remap upto 180 and now the dreaded siren noise is here as per research its only audible at low speed.

Some say it's normal sone say it's bearing I don't know what to do!

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Title: Re: Dreaded police siren
Post by: chrisr763 on November 23, 2012, 03:02:56 pm
I appoligise for this...




Sure your not just being followed?  :grin:
Title: Re: Dreaded police siren
Post by: PDT on November 23, 2012, 03:09:29 pm
its a well known problem on the 140PD, usually caused by failed turbo bearings. It will get worse over time and usually requires a new turbo to be fitted.
Title: Re: Dreaded police siren
Post by: JoeDarKa on November 23, 2012, 03:46:46 pm
I would replace it, mine went pop without any symptoms and mine was only on 21k i think!
Title: Re: Dreaded police siren
Post by: Polo6n1600i on November 23, 2012, 03:57:56 pm
But what causes the failed turbo bearings? I was told reliably that it was due to the oil feed/return getting blocked with crap oil sludge??
Title: Re: Dreaded police siren
Post by: jonm on November 23, 2012, 04:28:35 pm
I've had my "police Siren" "Owl" noise for 40,000 miles so far... Everyone I spoke to says its normal  :confused:
Title: Re: Re: Dreaded police siren
Post by: jason_rmh on November 23, 2012, 04:38:00 pm
My 140 has been doing it for a while too. I have a recon turbo to fit, just haven't gotten round to it. Lol.
Title: Re: Dreaded police siren
Post by: nadlad on November 23, 2012, 11:42:47 pm
I would replace it, mine went pop without any symptoms and mine was only on 21k i think!

how much did it cost you? what did u go for and has the siren noise finished now?
Title: Re: Dreaded police siren
Post by: Andy on November 23, 2012, 11:54:33 pm
midland turbos are very good standard turbos
Title: Re: Dreaded police siren
Post by: JoeDarKa on November 24, 2012, 06:32:26 am
I think mine was about 1.1k with a new turbo, intercooler and pipework etc. mine never made any siren noise, just exploded when overtaking. It still whistles but thats quite normal on many diesels
Title: Re: Dreaded police siren
Post by: nadlad on November 24, 2012, 11:52:44 am
midland turbos are very good standard turbos

do they stop the siren noise?

i was looking at darkside their a touch on the expensive side though
Title: Re: Dreaded police siren
Post by: Andy on November 24, 2012, 12:25:05 pm
midland turbos are very good standard turbos

do they stop the siren noise?
i was looking at darkside their a touch on the expensive side though
do they stop the siren noise?
the one i got of them did,to be fair any new turbo will be better and quite to the one on your car
i was looking at darkside their a touch on the expensive side though
Title: Re: Re: Dreaded police siren
Post by: nadlad on November 24, 2012, 01:34:16 pm
Max u missed the text


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Title: Re: Re: Dreaded police siren
Post by: Eddie-NL on November 24, 2012, 01:36:11 pm
Max u missed the text


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look at it closely, it is in the middle
Title: Re: Dreaded police siren
Post by: nadlad on November 24, 2012, 06:50:41 pm
i need a long term perm fix as i have too much ploughed into the car so am thinking HYBRID now

any feedback from anyone
Title: Re: Dreaded police siren
Post by: jonm on November 24, 2012, 07:24:28 pm
are you sure there is something wrong with it?
Title: Re: Dreaded police siren
Post by: nadlad on November 24, 2012, 07:32:26 pm
what