Audi 4.0T Turbo Diagnosis and Repair

We explain the design and function of these turbo systems as well as diagnosis and repair of turbo-related problems.

The evolution of power and efficiency

Almost every vehicle manufacturer has begun moving toward using forced induction engines...

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Audi A6 LIN: Alarm Failure and LIN Sound Battery Parasite (Part 3 & 4)

This topic is covered in a short series. Parts 3 and 4 will discuss energy management and PCV Ventilation System Testing.

Missed Parts 1 & 2? Click here

Part 3: Energy Management

With VCDS and a little work, the energy management sys...

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Audi A6 LIN: Alarm Failure and LIN Sound Battery Parasite (Part 1 & 2)

This topic is covered in a short series. Parts 1 and 2 will discuss how to find a possible parasite within a scan and how to measure a parasite after repairs.

Part 1: Alarm Failure

Tools Used
Laptop running VCDS
Various ranging 40, 60 and 20...

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Audi FSI No Start and Suspension Faults

PR code

This model came to the facility via flatbed and experienced a no start.

This PR code offers the following information:

8K2 5FL is the sales code that ElsaWin uses to identify the model.CALA is the engine code associated with the lin...

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Misleading Volkswagen Golf Valve Timing Faults

GO DEEPER AND FIND THE MYSTERY IN THIS VOLKSWAGEN GOLF

How many times does a vehicle enter the repair facility with the most unusual faults and running behavior? How about when the faults change mid stream and point to a possible deep repair?

...

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Body Shop Mistakes – As If, Part 2 & 3

The Victim: 2008 Touareg with VR6 FSI

Body Shop Mistakes – As if! (Part 2)

Seat frame and bolts

Primary and subsequent images are a story of what is seen and noticed during a diagnosis and at times some things can be missed. On this occasio...

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Porsche Intermediate Shaft Bearings

When Porsche discontinued the air-cooled 911, it simultaneously launched its new entry level car: the mid-engine, water-cooled Boxster. The departure from Porsche’s air-cooled platform, which had always been Porsche’s hallmark, was controversial at ...

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VW Body Shop Mistakes – As If, Part 1

The Victim: 2008 Touareg with VR6 FSI

Tools UsedVCDS with a 90 amp power supplyMultimeterElsaWinScreen capturing softwarePen and paper with as simple cameraCrimping tool, heat shrink tubes and a heat gun

The adventure began with a simple phone...

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Volkswagen Touareg 09D with Tiptronic Shifter

The victim is a 2008 Touareg with VR6 FSI, 09D automatic with 4-wheel drive

History

The customer asked an odd question during a phone conversation: “Why would the transmission downshift abruptly when driving?”

Tools UsedVCDS with a 90 amp...

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Audi TT DSG Transmission Basic Settings

While reading this article, associate this Audi TT DSG transmission with models such as the A3 and various VW models. Be aware that not all DSG transmission controllers display data in the identical fields and groups compared to this TT that was tes...

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2009 Tiguan 2.0L Fuel Pressure Error

2009 Tiguan 2.0L Fuel Pressure Error

Primary complaint: oil leak at the high pressure fuel pump. With a new seal on the pump the engine was very difficult to start and often didn’t or repeatedly stalled.

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Audi Driveline and C-V Boots

Audi Driveline and C-V Boots

The drivelines of modern Audi vehicles are integral components for propulsion. Without a way to properly transmit power from the engine to the wheels, you’re going nowhere!

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Porsche Oil Scavenging Systems

Porsche Oil Scavenging Systems

If the quantity of oil being burned is excessive it can quickly foul those new plugs. The result may not be just a misfire warning, but now possible catalytic converter efficiency codes and maybe lean mixture codes.

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Audi Rear Main Seal/Oil Leaks

Audi Rear Main Seal/Oil Leaks

A poorly sealed engine will leak oil, which can create a multitude of issues. When oil leaks are left unchecked, damage to additional components sets in.

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The DVOM and Signatures

The DVOM and Signatures

Gone are the days of using a DVOM to check on/off switches and the devices they control. There’s more information than you may think in the digital electronic signatures of today’s advanced on/off devices. Here’s what those numbers actually mean.

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