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Reliability of modern Turbo engines #4447425
07/02/17 11:54 AM
07/02/17 11:54 AM
Joined: Nov 2005
Posts: 63
Round Rock Texas
jrcowboys Offline OP
jrcowboys  Offline OP
Joined: Nov 2005
Posts: 63
Round Rock Texas
Guys;

Now that everything seems to be going turbo, how do you think reliability of such engines is impacted? I'm not talking about the turbo itself. The effective compression is increased, possibly causing more wear, etc. Also, with direct injection there is the buildup on intake valves.

Thoughts? Note: I'm looking at a 2012 BMW 335 with approx 85K mileage. I know there were earlier issues with the high pressure fuel pump.

JR

Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447444
07/02/17 12:15 PM
07/02/17 12:15 PM
Joined: Feb 2010
Posts: 4,838
Central Texas
sleddriver Offline
sleddriver  Offline
Joined: Feb 2010
Posts: 4,838
Central Texas
Now?

I bought a new 83 SAAB 900 turbo. Drove it for 14yrs and 254,000mi. Original non-water-cooled turbo lasted untill 205,000mi. No problems with the motor. Never consumed oil.

The sled motor is turbocharged, has accrued about 220,000 mi over my 19 yrs of ownership. No problems with motor or turbo to date.

Swedish Steel has a long history of turbocharged motors. So do I.

Given this, a 2012 BMW is a completely different animal from either car above. I'mm willing to bet a lot (most?) of it's cooling system is now plastic rather than metal. And here in our area we only have two seasons: SUMMER and February.

Is this your first BMW?


1998 Volvo V70 T5 228,880 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447450
07/02/17 12:24 PM
07/02/17 12:24 PM
Joined: Oct 2007
Posts: 1,548
utah
dareo Offline
dareo  Offline
Joined: Oct 2007
Posts: 1,548
utah
With modern BMW i would expect and plan for the very worst. Big Money Wasted. If you are cool with that then spend away.

Plenty of them are perfectly reliable. Many have had huge repair bills from turbos, common rail injectors, HPFPs, you name it.

To really enjoy a newer BMW i would suggest leasing them. It may cost slightly more per month but you can just drop it off or have the dealer tow it when it breaks and take a loaner.


2016 Golf Wagon 5MT, 2014 Accord Sport 6MT, 2016 GMC 1500 SLT 6.2
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447452
07/02/17 12:33 PM
07/02/17 12:33 PM
Joined: Oct 2014
Posts: 12,558
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,558
Idaho
Originally Posted By: jrcowboys
Guys;

Now that everything seems to be going turbo, how do you think reliability of such engines is impacted? I'm not talking about the turbo itself. The effective compression is increased, possibly causing more wear, etc. Also, with direct injection there is the buildup on intake valves.

Thoughts? Note: I'm looking at a 2012 BMW 335 with approx 85K mileage. I know there were earlier issues with the high pressure fuel pump.

JR
Probably as reliable as the quality of manufacture goes. engine failure is quite severe on boosted engines as compared to N/A engines. The price is worth it. Maintenance is important an in any engine.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447458
07/02/17 12:42 PM
07/02/17 12:42 PM
Joined: Dec 2002
Posts: 42,293
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,293
New Jersey
Overall no concern at all. But bmw was an early adopter and so you need to know what you're getting into with bmws. If that's an n54 you may have an hpfp concern as well as deposits. Or not.

Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447462
07/02/17 12:44 PM
07/02/17 12:44 PM
Joined: Jul 2015
Posts: 4,021
New England
madRiver Offline
madRiver  Offline
Joined: Jul 2015
Posts: 4,021
New England
No idea on BMW. My good friends 2008ish BMW 535ix manual wagon with twin turbos had both fail around 160k in 2015.

My wife drives a 2005 Legacy turbo wagon and still running original turbo with 218k since brand new.

Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447466
07/02/17 12:48 PM
07/02/17 12:48 PM
Joined: Jun 2014
Posts: 1,942
Ca.
UncleDave Online content
UncleDave  Online Content
Joined: Jun 2014
Posts: 1,942
Ca.
I'm concerned about the tiny composite alloy auto gas and diesel turbos, the bigger diesel turbos dont bother me so much.

The older heavier slower responding stainless/inconell units were stouter.

One of my Benz's the 2013 had a turbo " come apart" a month ago as described by MB service at a mere 36K miles.

Had it not been under warranty Id have had a 7K bill.

Uncle Dave


Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447471
07/02/17 12:59 PM
07/02/17 12:59 PM
Joined: Apr 2013
Posts: 5,895
FL, USA
gregk24 Offline
gregk24  Offline
Joined: Apr 2013
Posts: 5,895
FL, USA
I am interested in this topic as well. My fiancée originally had a 2013 Jetta with the 2.5 that had been in VW's line up for years and years, but that car was totaled less than a year after purchase. They went with another Jetta, which at the time was model year 2014 and the first year for the 1.8 TSI. So far its been solid, time will tell I suppose.


2012 Honda Accord EX-L K24z3
54,xxx miles
PPPP 0w20 / Fram Ultra

2014 VW Jetta SE 1.8T ea888
40,xxx miles
Castrol OEM dealer fill / OEM filter
Re: Reliability of modern Turbo engines [Re: gregk24] #4447491
07/02/17 01:30 PM
07/02/17 01:30 PM
Joined: Oct 2007
Posts: 1,548
utah
dareo Offline
dareo  Offline
Joined: Oct 2007
Posts: 1,548
utah
Originally Posted By: gregk24
I am interested in this topic as well. My fiancée originally had a 2013 Jetta with the 2.5 that had been in VW's line up for years and years, but that car was totaled less than a year after purchase. They went with another Jetta, which at the time was model year 2014 and the first year for the 1.8 TSI. So far its been solid, time will tell I suppose.


Well, if you ask me, the 1.8TSI and BMW's turbo offerings are totally different. VW's mill is designed for mass production, high MPG, and reliability before ultimate power. BMW is all about the performance first. Hopefully the 1.8TSI will live a long trouble free life. It is a lowish compression short stroke turbo engine that on paper looks great.


2016 Golf Wagon 5MT, 2014 Accord Sport 6MT, 2016 GMC 1500 SLT 6.2
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447515
07/02/17 02:04 PM
07/02/17 02:04 PM
Joined: Sep 2009
Posts: 16,183
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,183
OH
Ford has been putting DI turbo engines ranging from 1 to 3.5 liters in perfectly ordinary cars, trucks, CUVs/SUVs as well as performance models for some years now. Some of these engines are in the same league as this BMW for specific output.
I'm not aware of any unusual failures in any of these engines, most of which are Mazda designs.


18 Accord Hybrid FF
17 Forester 18K VME 0W-20
12 Accord LX 96K SSO 0W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Reliability of modern Turbo engines [Re: fdcg27] #4447524
07/02/17 02:25 PM
07/02/17 02:25 PM
Joined: Dec 2016
Posts: 7,117
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,117
Waco, TX
Originally Posted By: fdcg27
Ford has been putting DI turbo engines ...for some years now. Some of these engines are in the same league as this BMW for specific output.


Yes, but Ford's testing & reliability is proven.

The EcoBoost F150 seemed to be a joke at first.... but we were all proven wrong with that.

I wouldn't trust a turbo BMW any further than I could throw it - compared to the reliability of the EcoBoost offerings from Ford.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447529
07/02/17 02:28 PM
07/02/17 02:28 PM
Joined: Oct 2010
Posts: 9,119
Virginia Beach
Astro14 Online content
Astro14  Online Content
Joined: Oct 2010
Posts: 9,119
Virginia Beach
Well, my wife's 2002 Volvo turbo only has 225,000 miles on it with zero engine work. My 2002 Volvo turbo only has 190,000 miles on it, on the original engine and turbo, with zero engine work.

So, a few more years, or another hundred thousand miles, and I will be able to tell if a modern turbo engine is reliable enough...


32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Reliability of modern Turbo engines [Re: jrcowboys] #4447548
07/02/17 02:47 PM
07/02/17 02:47 PM
Joined: Jan 2009
Posts: 13,974
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,974
Illinois
Originally Posted By: jrcowboys
Guys;

Now that everything seems to be going turbo, how do you think reliability of such engines is impacted? I'm not talking about the turbo itself. The effective compression is increased, possibly causing more wear, etc. Also, with direct injection there is the buildup on intake valves.

Thoughts? Note: I'm looking at a 2012 BMW 335 with approx 85K mileage. I know there were earlier issues with the high pressure fuel pump.

JR


If the high pressure fuel delivery system fails it will be costly if you have the DI system as well. That's why I chose the 2.5 NA PFI system in my 2017 Fusion.

Last edited by tig1; 07/02/17 02:50 PM.

2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: Reliability of modern Turbo engines [Re: Astro14] #4447549
07/02/17 02:49 PM
07/02/17 02:49 PM
Joined: Jan 2009
Posts: 13,974
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,974
Illinois
Originally Posted By: Astro14
Well, my wife's 2002 Volvo turbo only has 225,000 miles on it with zero engine work. My 2002 Volvo turbo only has 190,000 miles on it, on the original engine and turbo, with zero engine work.

So, a few more years, or another hundred thousand miles, and I will be able to tell if a modern turbo engine is reliable enough...


But it most likely doesn't have DI. That's where the money is at.


2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: Reliability of modern Turbo engines [Re: tig1] #4447553
07/02/17 02:54 PM
07/02/17 02:54 PM
Joined: Oct 2010
Posts: 9,119
Virginia Beach
Astro14 Online content
Astro14  Online Content
Joined: Oct 2010
Posts: 9,119
Virginia Beach
No, no DI on the 2002 Volvos, so I suppose they don't meet the "modern" definition...


32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
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