BMW Tech Tips, How-tos and News - Bavarian Autosport Blog » X5

BMW M54 6-cylinder Crankcase Ventilation (PCV) DIY – 325i 328i 330i 525i 530i X5 & Others

Otto — Thu, 22 Jul 2010 13:20:18 +0000

The Crankcase Ventilation System (also known as PCV, or Positive Crankcase Ventilation) on the BMW M54 6-cylinder engines consists of a number of ventilation hoses, an oil separator and check valve and an oil drain-back hose. The system is well known to have problems with vacuum leaks due to hose and valve deterioration and cracking, as

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BMW 1995 BMW 740i Cooling System Leak – V8 M60 M62 (E31 E32 E34 E38 E39 X5)

Peter — Fri, 16 Jul 2010 18:08:29 +0000

Q I recently replaced my water pump gasket and coolant tube seals. And found that I still have the same leak I originally started with around the large coolant tube seal. Could this be coming from a bad water pump or could it be a faulty installation. Please help.

A I would say that there may

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BMW Rough Running & Stalling – M54 – Camshaft Sensor & MAF Cleaning

Otto — Fri, 09 Jul 2010 20:30:12 +0000

This answer is applicable for many BMWs in addition to the one listed below.

Q car year: 2002 car model: 325i Hello, I have the Bav-auto Fault Code Reader and reset tool. I have fault codes 08 and 41. The camshaft sensor is on order but the mass air flow sensor only came on after cleaning my K &

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BMW V8 Preventative Maintenance – Water Pump & Belts – E31, E32, E34, E38, E39, X5

Peter — Wed, 07 Jul 2010 20:29:56 +0000

Q How often we need to replace the water pump and power steering belts and should both belts replace in the same time.

A We recommend replacement of the accessory drive belts, for your V8 engine, at 60,000 miles or 4-years. The alternator, water pump and power steering are all on the same belt. The A/C

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BMW E46 Lower Radiator Hose Leak at Temperature Sensor – M54 – E39 X5 X3 Z4 Z3

Peter — Wed, 07 Jul 2010 19:30:14 +0000

Q Replaced a bunch of parts, one is the lower radiator hose when doing a belt replacenment. It is leaking at the sensor connector. Replaced the sensor and it is still leaking with new. Here is a reply from Mike at BMW CCA. Do you have some additional recommends? “The new style hoses have a

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BMW X5 Radiator Hose Popping Off

Otto — Wed, 07 Jul 2010 19:03:12 +0000

Q I have a 2002 BMW X5 30.i suffered a overheating episode. So far I have replaced the Coolant expansion tank, the Thermostat, New Radiator, New upper hose, new lower hose. The problem I am having is in about 20 to 30 minutes driving the upper radiator hose pops off the coolant expansion tank and the radiator.

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BMW Oil Viscosity & Auto Transmission Filter & Fluid

Otto — Fri, 25 Jun 2010 18:22:21 +0000

This answer is applicable for many BMWs in addition to the one listed below.

Q car year: 2001 car model: Z3 2.5 Our Z3 2.5 2001 with auto trans is soon coming up on 100k. Which synthetic engine oil viscosity, for the San Francisco CA area, should we use? Avg temp=62 degrees with no snow.

A We would recommend a

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BMW Intermittent Or Missing Pixels On Digital Display – E39 E38 X5

Otto — Fri, 18 Jun 2010 18:46:30 +0000

This answer is applicable for many BMWs in addition to the one listed below.

Q car year: 2000 car model: 740iL My dashboard display..time;distance;door ajar; etc. displays in broken format. Sometimes it displays where you can read the whole thing…miles and everything, but then most of the time you can barely make out what it is reading. Is this

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BMW 2002 E46 330ci HID Headlamp

Peter — Wed, 16 Jun 2010 19:13:01 +0000

Q Once again I am in need of your expert knowledge. My ‘02 E46 330ci driver side headlamp went out on me yesterday. A couple of days back, the lamp indicator flashed but then went away and the headlight continued to work but now, it’s completely out. Is this as simple as me ordering one

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BMW 2000 540i Automatic Door Locks

Peter — Wed, 16 Jun 2010 19:04:51 +0000

Q Can I turn off the “automatic door locks” that lock the car doors once I start driving? I searched the car manual and I can’t find any info.

A You can, indeed, have the automatic door locking feature turned off. This must be done at the BMW dealer. There are actually quite a few other

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