28 Jan, 2016

2012 BMW N20 Engine – Oil Filter Housing Update Kit

By | January 28th, 2016|Case Studies|Comments Off on 2012 BMW N20 Engine – Oil Filter Housing Update Kit

The Problem
2012-bmw-328i-engine-twinpower
2012 BMW with the N20 engine presented with an apparent coolant and oil intermix fault, in other words, the normally green antifreeze was black with oil, and antifreeze had gotten into the engine oil.

Testing confirmed that coolant was being contaminated with engine oil, and the engine oil was noted to have a white foamy mixture on the dipstick and fill cap. Tech diagnosed as a defective engine oil filter housing, the original housing was plastic, BMW has since released an update kit which is constructed of aluminum.

Repair
Tech replaced oil filter housing with update kit, […]

18 Jan, 2016

BMW Water Pump Failure – How, Why, and What To Prevent

By | January 18th, 2016|Case Studies|Comments Off on BMW Water Pump Failure – How, Why, and What To Prevent

What

This BMW 540 has was diagnosed with a defective engine coolant pump. Symptoms were overheating and damaged drive belt system. Disassembly of the front cover and removal of the water pump allowed for inspection of the pump.

How
The mode of failure with this pump appears to be simple age and miles, likely exasperated by a lack of coolant changes. The bearing failed on the pump, allowing the plastic impeller to contact the aluminum housing, you can see the growing on the surface. Finally the plastic impeller itself failed, the vehicle overheated, and came […]

13 Jan, 2016

Mini Cooper Timing Chain Service

By | January 13th, 2016|Case Studies|Comments Off on Mini Cooper Timing Chain Service

– Mini Cooper Timing Chain Service –

New kit installed New kit installed

Big Nick hard at work doing a timing chain update in a newer Mini Cooper.
Be it a Cooper, Cooper S, or Clubman, we see this nearly weekly on the Mini Coopers in our area. You can read all about Mini timing chains at our Mini Timing Chain 101 page – http://tinyurl.com/Happy-Mini

Fortunately this was caught BEFORE it failed and damaged the engine. When looking at the R56 Mini Coopers (2007 and newer) , we’d always advise checking to see if the […]

11 Jan, 2016

BMW Service Engine Clogged Breather System – Oil Consumption Use

By | January 11th, 2016|Case Studies|Comments Off on BMW Service Engine Clogged Breather System – Oil Consumption Use

BMW Service Valve Cover BMW Service Valve Cover –
Note sludge or clogging in ventilation port

BMW Service with N52 Engine – This vehicle came from another shop with an uncorrected engine oil leak and high oil use. Consumption was on the order of 1 quart per 100 miles, yes, you read that right.

We started by finding the incorrect engine oil fill cap had been installed by the previous facility, causing an oil leak on the top of the engine, but that was only one problem. The real culprit was a problem with the crankcase […]