320d

MEGA · 02-16-2010, 03:50 PM

So.

Recently my economy has gone from awful to barbaric. But its been a slow decline. Also, my turbo power is completely completely non-linear now. It goes nothing, nothing, nothing, nothing, OH MY GOD SIDEWAYS, nothing.

Therefore, I've put 2 and 2 together and assumed the MAF is completely feckered.

No major issue I've got a service in just over 1500 miles and an extended warranty so will ask them to look at it.

But on Saturday something new happened.

Started the car, pulled away. Didn't notice anything immediately, because like I said - I get nothing till over 2k due to the MAF lol. But then, at 2k, then at 3k, I still didn't notice anything.

FYI I had about 40 miles left in the tank.

Turbo completely MIA. Nothing at all. Restarted the car, no warning lights, pulled away again - still nothing.

But then left it 2 mins, did the same again - and it was back to its normal self. When I tried to pull out of my road I nearly shat myself as it was pissing down and the turbo just attacked me out of nowhere whilst turning. Good old traction control.

So I then filled the tank up and its been fine for the last 200 miles now. Well, as fine as usual. Theres definitely something MAF related or otherwise sinister affecting delivery and economy.

What should I do? PANIC and take it to a dealer? Could the turbo be on the way? I sort of assumed possibly an intake valve had failed to open. Dodgy solenoid or something. But, well you guys are the experts.

SiKkBaSs · 02-16-2010, 03:54 PM

There's only so much that can be done on a forum Megs. I had a car turning off at random times debauchle last year. Only real way to sort it out would be a trip to the dealers. Who knows it could be messing something else up...?

MEGA · 02-16-2010, 03:56 PM

Just want a first word. I have to use a days holiday really to get to my preferred dealer so just wanted to wait till it was due the service and get a courtesy car

MEGA · 02-17-2010, 07:29 AM

cmon help me out you lot ...

jinjur · 02-17-2010, 08:24 AM

I wonder if the MAF works the engine below 2000rpm, in an off boost scenario....is it the MAP sensor that governs everything over and above that...on boost so to speak?

Could that be arsing about with boost and variable vanes etc if it is faulty?

Either way...you are veering well towards a dealer diagnosis chap......soz

Jinj

ElegantSpoon · 02-17-2010, 03:37 PM

Quote:

Originally Posted by jinjur

I wonder if the MAF works the engine below 2000rpm, in an off boost scenario....is it the MAP sensor that governs everything over and above that...on boost so to speak?

It does indeed. That was explained in your other thread and on those google links

MEGA · 02-17-2010, 04:06 PM

Yeah. I'm 95% sure the MAF is fecked. Thats not really even in dispute. Its the new turbo characteristic I'm worried about !!

MEGA · 02-18-2010, 09:01 AM

bttt

Captain Chaos · 02-18-2010, 09:12 AM

You could check for damage to a vacuum hose if you want to tick off the easier boxes, but that's unlikely to give you no turbo at all - a faulty MAP could give you the characteristics you're describing with the turbo. You know anyone with an OBD unit that could peel the codes off the car? E90s are pretty good for reporting the detail on what's wrong..

yian77 · 02-18-2010, 10:01 AM

Is it the 163 or the 177 model that you have? Is it mapped or not?

Mud · 02-18-2010, 10:22 AM

Quote:

Originally Posted by MEGA

cmon help me out you lot ...

Topless pics of your Mrs and I will help

MEGA · 02-18-2010, 10:39 AM

Quote:

Originally Posted by Mud

Topless pics of your Mrs and I will help

LOL. No

She's not bad though.

ps. 163. To the Cyprus guy

Cafe.Racer · 02-19-2010, 05:18 AM

Get that MAF changed before you start looking at anything else.

02-16-2010, 03:50 PM	#1
MEGA Dieseasal 209 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	320d - Strange Turbo issues. Advice ? So. Recently my economy has gone from awful to barbaric. But its been a slow decline. Also, my turbo power is completely completely non-linear now. It goes nothing, nothing, nothing, nothing, OH MY GOD SIDEWAYS, nothing. Therefore, I've put 2 and 2 together and assumed the MAF is completely feckered. No major issue I've got a service in just over 1500 miles and an extended warranty so will ask them to look at it. But on Saturday something new happened. Started the car, pulled away. Didn't notice anything immediately, because like I said - I get nothing till over 2k due to the MAF lol. But then, at 2k, then at 3k, I still didn't notice anything. FYI I had about 40 miles left in the tank. Turbo completely MIA. Nothing at all. Restarted the car, no warning lights, pulled away again - still nothing. But then left it 2 mins, did the same again - and it was back to its normal self. When I tried to pull out of my road I nearly shat myself as it was pissing down and the turbo just attacked me out of nowhere whilst turning. Good old traction control. So I then filled the tank up and its been fine for the last 200 miles now. Well, as fine as usual. Theres definitely something MAF related or otherwise sinister affecting delivery and economy. What should I do? PANIC and take it to a dealer? Could the turbo be on the way? I sort of assumed possibly an intake valve had failed to open. Dodgy solenoid or something. But, well you guys are the experts. __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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02-16-2010, 03:54 PM	#2
SiKkBaSs GTR'in it 178 Rep 4,434 Posts Drives: Nissan GTR Black Edition Join Date: Jun 2008 Location: Kensington, London iTrader: (2) Garage List 2006 325i [0.00]	There's only so much that can be done on a forum Megs. I had a car turning off at random times debauchle last year. Only real way to sort it out would be a trip to the dealers. Who knows it could be messing something else up...?
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02-16-2010, 03:56 PM	#3
MEGA Dieseasal 209 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	Just want a first word. I have to use a days holiday really to get to my preferred dealer so just wanted to wait till it was due the service and get a courtesy car __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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02-17-2010, 07:29 AM	#4
MEGA Dieseasal 209 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	cmon help me out you lot ... __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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02-17-2010, 08:24 AM	#5
jinjur yes....spelt with J's 58 Rep 963 Posts Drives: F31 325D MSport Join Date: Jan 2009 Location: NoRtH eYeLaNd iTrader: (0)	I wonder if the MAF works the engine below 2000rpm, in an off boost scenario....is it the MAP sensor that governs everything over and above that...on boost so to speak? Could that be arsing about with boost and variable vanes etc if it is faulty? Either way...you are veering well towards a dealer diagnosis chap......soz Jinj
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02-17-2010, 04:06 PM	#7
MEGA Dieseasal 209 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	Yeah. I'm 95% sure the MAF is fecked. Thats not really even in dispute. Its the new turbo characteristic I'm worried about !! __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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02-18-2010, 09:01 AM	#8
MEGA Dieseasal 209 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	bttt __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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02-18-2010, 09:12 AM	#9
Captain Chaos Lieutenant 6 Rep 473 Posts Drives: cars n stuff Join Date: Jan 2008 Location: UK iTrader: (2)	You could check for damage to a vacuum hose if you want to tick off the easier boxes, but that's unlikely to give you no turbo at all - a faulty MAP could give you the characteristics you're describing with the turbo. You know anyone with an OBD unit that could peel the codes off the car? E90s are pretty good for reporting the detail on what's wrong..
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02-18-2010, 10:01 AM	#10
yian77 Enlisted Member 4 Rep 48 Posts Drives: F36 430d auto Join Date: Jan 2009 Location: cyprus iTrader: (0)	Is it the 163 or the 177 model that you have? Is it mapped or not?
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02-19-2010, 05:18 AM	#13
Cafe.Racer Captain 31 Rep 896 Posts Drives: 320d Touring Join Date: Feb 2007 Location: Nottingham, UK iTrader: (1)	Get that MAF changed before you start looking at anything else. __________________ Phil
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