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2002 Audi A6 Quattro Transmission Oil Seal Leak “Wrong Parts”

Repair the transmission oil leak correctly the second time.

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VW Cooling System Conundrum

How a Seemingly Simple Radiator Replacement Leads to Three Weeks of Technician and Customer Frustrations

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Tips and Tricks with a 2008 Audi A6 3.2L No Crank/No Start

Did you ever wonder how things can get so out of hand?

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VW and Audi Ignition Coils – The Magic Wand Continues (Part 3)

This is one set of harnesses we made so as to not damage the original harness and gather the signals of interest.

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This Audi Diagnosis Was Bad Timing for All

There’s usually only one big driveability problem that prompted the customer to visit your shop.

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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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Getting to Know Mr. Mezger, Part 2 – Evolution into Water Cooling

The air-cooled Porsche Mezger engine proved its worth for years. Water cooling extended its life even further.

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2005 Jetta 2.5L PCV/Vacuum Leak

A starting and idling anomaly that was repeated in the facility and had concerns in relation to idle quality.

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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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VW Haldex 4Motion Generation IV

2.0L TFSI Automatic Transmission AWD

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derFix produces monthly digital content on how to diagnose and repair Volkswagen, Audi and Porsche vehicles. If you would like to receive the annual print issue (November), please be sure to update your profile with your preference for print (or print and digital). 

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.

read more
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!

read more
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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