Question about 2007 Mercedes-Benz C-Class

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What fault is p0299 - 2007 Mercedes-Benz C-Class

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  • andrew Apr 04, 2015

    Also forgot to mention there is also an actuator on the turbo with a arm that moves up and down you need to make sure this actuator moves freely

  • andrew Apr 04, 2015

    http://youtu.be/1CztBcMtlrw

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Check for split hoses around the turbo even very small hoses/pipes as sometimes you can't tell if they have a split in them unless you look for it properly

Posted on Apr 04, 2015

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2005 GMC Sierra Duramax 6.6 Changed air filter, oil and fuel. 20 mins of driving and lost all power. Code reads only P0299. Not sure what to check first


code p 0299 refers to turbo/supercharger ---low boost=== causes --- mechanical fault
check for all turbo hoses tight , inter cooler not split or has a hole in it

Dec 07, 2015 | GMC Cars & Trucks

1 Answer

What is code , po299' on mitsubish shogun 2008


the following answer is courtsey of OBD-CODES.com OBD Codes Your OBD-II Trouble Codes Repair Site Home Trouble Codes FAQs Forums Store P0299 Turbo / Supercharger Underboost OBD-II Trouble Code Technical Description Turbocharger/Supercharger "A" Underboost Condition What does that mean? The P0299 DTC code refers to a condition where the PCM/ECM (powertrain/engine control module) has detected that the bank "A" or single turbocharger or supercharger is not providing a normal amount of boost. That could be due to a variety of reasons, which we detail below. On a normally operating turbocharged or supercharged engine the air going into the engine is pressurized and that's part of what makes so much power for an engine of it's size. If this code is set, you will likely notice reduced power output. In the case of Ford vehicles, this may apply: "The PCM checks for a minimum throttle intake pressure (TIP) PID reading during engine operation, which indicates an underboost condition. This DTC sets when the PCM detects that the actual throttle intake pressure is less than the desired throttle intake pressure by 4 psi or more for 5 seconds." Symptoms Symptoms of a P0299 DTC may include: MIL (Malfunction indicator lamp) illumination Reduced power output from engine, possibly in a limp mode Unusual sounds from the engine/turbo There would likely be no other symptoms. Potential Causes Potential causes of a P0299 turbo underboost code include: Intake (induction) air restriction or leak Failed or damaged turbocharger (sticking, binding, etc.) Faulty boost/charge pressure sensor Faulty wastegate bypass regulator valve (VW) Low fuel pressure condition (Isuzu) Sticking turbo nozzle control solenoid (Isuzu) Faulty injector control pressure (ICP) sensor (Ford) Low oil pressure (Ford) EGR system fault (Ford) Variable geometry turbocharger (VGT) actuator (Ford) VGT vanes sticking (Ford) Possible Solutions First off, you'll want to repair any other DTC codes if present prior to diagnosing this code. Start with a visual inspection. Inspect the intake air system for cracks, loose or disconnected hoses, restrictions, blockages, etc. Repair or replace as required. If the air induction system tests OK, then you'll want to focus your diagnosis efforts on the charge pressure control, diverter valve (blowoff valve), sensors, regulators, etc. Really at this point you'll want to refer to a vehicle specific detailed repair manual for specific troubleshooting steps. There are some known issues on certain makes and engines so also check out our car repair forums here and search using your keywords. For example, if you search around, you'll find that a common fix for a P0299 in VWs is to replace or repair the diverter valve or wastegate solenoid. On the GM Duramax diesel, this code may mean the turbo housing resonator has failed. If you have a Ford, you'll want to next check the wastegate regulating valve solenoid for correct operation

Read more at: http://www.obd-codes.com/p0299
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Aug 02, 2015 | Cars & Trucks

1 Answer

What could cause a P0699 and P0299 sensor ?


call and ask the dealer about the codes or go to autozone they check the codes for free.

May 26, 2014 | 2013 Hyundai Tucson

1 Answer

What is the problem if the code P0299


code po299 refers to turbo/supercharger -low boost===causes --mechanical fault
if turbo check for actuator unit working( broken hose to unit ). Turbo is spinning ( seized bearings--jammed turbine / compressor wheel) supercharger belt is in good condition and properly adjusted.

May 09, 2014 | Cars & Trucks

1 Answer

Sprinter p0299


read engine fault codes could be bypass valve

Sep 11, 2013 | Cars & Trucks

1 Answer

VW Passat 08 plate Fault Coad P0299 and P2196


What seems to be the problem with the car, other than the codes?

Nov 24, 2012 | 2008 Volkswagen Passat Sedan

1 Answer

VW P0299 engine code


P0299 VOLKSWAGEN - Turbocharger Engine Underboost
Possible causes- Faulty Wastegate Bypass Regulator Valve
- Mechanical damage at Turbo/Super Charger
- Faulty Charge Air Pressure Sensor

Oct 15, 2012 | Cars & Trucks

2 Answers

Code p0299 on 06 jetta


check with vw theres a technical service bulletin issued in dec o7 number 0107-70 its for code P0299 on 2006--- 2.0L turbo vw engines

Jan 21, 2010 | 2006 Volkswagen Jetta

1 Answer

2006 jetta 2.0 t with a coode p0299. what needs to be replaced...help please


this code is in reference to a turbo fault code that comes up either with a weak turbo or internally leaking turbo / dragging turbo impeller /pintal shaft,
could also refer to a turbo waste gate vacumn contrl issue

Jan 21, 2010 | 2006 Volkswagen Jetta

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