Audi TT Quattro 1.8 Turbo – Defective Water Pump

This car has was diagnosed with a defective engine coolant pump. Symptoms were overheating and noise from the front timing belt area. Disassembly of the front cover and timing belt, no easy task on at Audi TT, allowed for removal and inspection of the pump. As you can see from the photos, it is a bit of a process to access the pump, so be sure to always replace the timing belt and tensioner at the same time. The timing belt, scheduled by Audi for replacement at 105K miles, has a history of failing considerably sooner, so consider timing belt [...]

By | July 21st, 2011|Case Studies|Comments Off on Audi TT Quattro 1.8 Turbo – Defective Water Pump

Volvo V70 GLT – Defective Turbocharger

This car has was diagnosed with a defective turbocharger unit. Note the large amount of oil build up on the pressure side of the turbo, especially in comparison to the new turbo on the left. This oil is then drawn into the engine, resulting is severe smoking from the exhaust, high oil consumption, and even damage to the catalytic converter. Note the Volvo replacement turbo box, we always use factory parts for reasons of longevity and proper fitment. On late model car turbo failures are uncommon if the vehicle is cared for properly. Indeed, with proper care service life of [...]

By | July 20th, 2011|Case Studies|Comments Off on Volvo V70 GLT – Defective Turbocharger

Volvo S70 Turbo – Electrical Fault in Dash/Alternator Failure

This car had an interesting story. The car presented with the charging light on, indicating alternator failure. The alternator light would flicker, turning on and off rapidly. Alternator failures are somewhat uncommon on the later Volvo S70s, but a charging system analysis showed that the alternator was indeed not charging under load, even when full fielded. 12 VDC was found at the field wire during the testing. We replaced the alternator with a Bosch remanufactured unit and then road tested the car. The alternator light came back on, but was steady, not flickering as before. We checked for voltage on [...]

By | July 19th, 2011|Case Studies|Comments Off on Volvo S70 Turbo – Electrical Fault in Dash/Alternator Failure

Audi S6 – Timing Belt Service w/ Water Pump

The Audi S6 timing belt service does not normally require removal of the nose of the car, but in this case the silicone filled fan clutch was seized onto the idler shaft and could not be removed with the nose in place. 10 years and more recently time in the coastal environment seemed to have done its worse. To fully access the clutch required removal of the front bumper cover, radiator support and radiator, evacuate and recharge of the A/C system. As the engine water pump is driven off the camshaft belt, it is a good idea to replace the [...]

By | July 18th, 2011|Case Studies|Comments Off on Audi S6 – Timing Belt Service w/ Water Pump

Audi A8 – Head Gasket Service

Timing belt replacement on the Audi A8 requires a fair amount of disassembly on the front end of the vehicle. The Audi 4, 6 and 8 cylinder engines are high compression types, failure of the timing belt will result in major engine damage. Although scheduled by Audi for 90,000 miles, we have found loose or severely worn timing belts and tensioners at the 75K mile mark. When replacing the rubber timing belt, all belt rollers, water pump and thermostat must be replaced. This is a service you only want to do every 100,000 miles. We have noted a number of [...]

By | July 17th, 2011|Case Studies|Comments Off on Audi A8 – Head Gasket Service

BMW 525 – Defective Heat Exchanger (Heater Core) in Dash

This car has was diagnosed with a defective heat exchanger, also know as a heater core. The heater core as used in this BMW's climate control has hot engine coolant flowing through it during operation. The heater core, which is comprised of a an aluminum core and nylon tank ends had developed at leak at the interface. This area is often sealed with rubber o-ring which fails after long term exposure to heat and coolant. Once the o-ring seal fails, coolant will begin to seep out of the heater core into the heater box producing a strong burning smell from [...]

By | July 16th, 2011|Case Studies|Comments Off on BMW 525 – Defective Heat Exchanger (Heater Core) in Dash

Mercedes 300SDL – Fault In Climate Control System

Car presented with Incorrect air flow out the heat/ac vents. Upon inspection we discovered that a previous servicing facility had worked on the vehicle and left the ACC system in total disarray. Vacuum lines were disconnected, flaps were wire tied closed, actuators were disabled, vacuum manifolds were plugged, in short, the ACC air direction system was non-functional. This required removal of the dash pad and center console to fully inspect and access what was needed to make the system operational once again. Subsequently upon removal we found broken flaps, damaged cable actuators and stripped gears. This is a major undertaking, [...]

By | July 15th, 2011|Case Studies|Comments Off on Mercedes 300SDL – Fault In Climate Control System

VW Passat V6 – Engine Oil Sludge – Incorrect Oil Grade Used

Engine oil sludge does not just affect Saabs, take at look at the oil pan and lower engine on this VW Passat. That black gooey substance is not tar, but engine oil sludge. Unfortunately the car was switched over to a full synthetic engine oil too late in its life, for the first three years it was run on a conventional oil, you can see the results. It is cheap insurance to always use a fully synthetic engine oil on all European autos newer than 1999. We use Castrol Syntec in our workshop, it is the factory fill on many [...]

By | July 14th, 2011|Case Studies|Comments Off on VW Passat V6 – Engine Oil Sludge – Incorrect Oil Grade Used

Mercedes 300SL – Rodent Damage to ABS Wiring

With only 22,000 miles, rodent damage on the ABS rear wheel speed sensor data cables. Somehow a mouse found its way inside the car, under the seat, under the carpet, under the foam padding, and into the rear wiring harness conduit for a quick snack. Required extensive work to diagnose and then removal of the passenger seat and carpeting to service.

By | July 13th, 2011|Case Studies|Comments Off on Mercedes 300SL – Rodent Damage to ABS Wiring

BMW M3 Sport Coupe – Upgrade Exhaust System

A fun and rewarding job, installing a stainless steel sport exhaust on a brand new BMW M3 coupe. Looks pretty and sounds even better!

By | July 12th, 2011|Case Studies|Comments Off on BMW M3 Sport Coupe – Upgrade Exhaust System