20 Dec, 2013

Tech Tip – BMW 750iL V12 Engine Vacuum Leakage Correction – Cold Running Drivability Problem

By | December 20th, 2013|Case Studies|Comments Off on Tech Tip – BMW 750iL V12 Engine Vacuum Leakage Correction – Cold Running Drivability Problem

The BMW E38, a classic German designed performance sedan and the matching BMW M73, matching German built V12 engine, two great tastes that tastes great together. Nothing quite says “autobahn cruiser” like a big German V12, and nothing is more comfortable for use driving than the E38 body.

The BMW M73 is a V12 SOHC piston engine which replaced the M70 and was produced from 1993-2002. Compared with its M70 predecessor, the M73 uses an aluminum engine block and cylinder heads. While most other engines in the BMW range had switched to DOHC and 4 valves per cylinder, the M73 used SOHC […]

12 Dec, 2013

Tech Tip – Things You Don’t Want To Find In The Back Of Your BMW – Incorrect Battery

By | December 12th, 2013|Case Studies|Comments Off on Tech Tip – Things You Don’t Want To Find In The Back Of Your BMW – Incorrect Battery

Tech Tip – Things You Don’t Want To Find In The Back Of Your BMW (9 photos)
1) Incorrect battery type and size.

2) Not battery venting – explosion hazard.

During the diagnostic for a electrical fault on this BMW, we uncovered some problems why the car was towed in. First, the incorrect size and type of battery had been installed, “Duralast” is not a factory BMW battery, and these cars are very touchy on correct voltage and battery type.

Second, and perhaps more concerning, was that the battery venting pipe was never installed. A byproduct of battery charging is hydrogen gas, which is […]

4 Dec, 2013

Tech Tip – Porsche Boxster Water Pump Replacement

By | December 4th, 2013|Case Studies|Comments Off on Tech Tip – Porsche Boxster Water Pump Replacement

The Porsche Boxsters are great cars, but have a higher than average failure rate of the water pump, unfortunately this is very critical part on these engines, and aside from the loss of the alternator drive belt, overheating can rapidly damage the engine.

The pump is driven by the Poly-Ribbed Belt, which also drives the Alternator, the A/C and the Power Steering. In most cases, when the water pump fails, it’s the impeller which breaks due to pump’s bearing which eventually breaks.

When this happens generally the Poly-Ribbed Belt shreds or comes off the pulleys and or the engine looses its coolant. […]