🦓 Bmw E46 Ccv Valve Symptoms

Basic BMW M54 Engine Specs. Common BMW M54 Engine Problems. Water Pump & Thermostat Failure. Crankcase Ventilation System Failure. Camshaft Position Sensor Failure. Oil Consumption. VANOS Seal Failure. DISA Valve Failure. Valve Cover Leaking. Fuel economy will be ideal on most cars between 5-75k miles, after this, it degrades and drops unless the car is maintained like the BMW "Ultimate Maintenance Machine". New O2 sensors, fuel filter, spark plugs, CCV, DISA, fuel pump and so forth. Even then you may never reclaim early mileage Fuel Economy. The CCV is supposed to provide that vacuum. While the CCV is apparently ok for the other engines, it's inadequate for the M54B30 engine. Hence, these engines burn oil. I believe this CCV design is common to the M52 and M54 engines only. However, the only M54B30 engine has the LTOCRs. That's why the CCV needs to be replaced with an oil catch can. Lean codes P0171 P0174. Yes 10.3% is high. Less than +/-3% is more like it. As you mentioned, you may have caused an issue with the VC or VCG or associated hoses when you did the Vanos work. It doesn't surprise me that it runs good as the computer is able to compensate for the un-metered air (to a point). It was probably the hose. They get brittle with age due to the plastic and anything near 10 years old is marginal at best. Unless you're super gentle with it, it will almost surely crack during a repair. 2003 330i TiAg Sport Pkg ~110k miles. Just a few days ago I noticed a faint whistling noise coming from the engine compartment (I think). Today the noise was worse and the CEL came on. Here are all the symptoms I've noticed: 1) High pitched whistling noise between 2k-4k rpm, regardless of vehicle speed or gear. 2) Occasional rough idle (jumps between 500-1500 rpm). How do I know if my e46 CCV is bad? Symptoms of a bad BMW CCV are: white smoke coming out of the exhaust, excessive oil consumption (burning oil), engine running rough and misfiring. Failure of the BMW crankcase vent valve creates a vacuum from air being sucked through the rear main seal. What does a CCV valve do on a BMW? The SAP vacuum line typically cracks or crumbles when you try to move it during a VCG change. While the cost of the vacuum line is expensive (~$14 for 3 ft at the stealer), it is clearly not designed for high heat environments. The CCV hoses sit on the intake side of the engine and see less heat. Search YouTube for Scotty Smoke Test. Do what Scotty does or build a tester from related video. Remove the oil fill cap and make sure the crankcase fills up with smoke, put the oil fill cap back on and check for leaks around the valve cover, oil fill cap, dipstick tube and CCV hoses. Cracked valve covers are pretty common on the E46 as it ages. The vacuum port on the CCV valve went to the fuel pressure regulator on the M52 engines--the M54 engine the port is capped off-----on the M54 engines the fuel pre--reg derives vaccum from the small vac hose that goes into the air intake duct--right after the maff--along side of the vac hoes for the jet suck pump Replace the crankcase vent valve, crankcase vent hoses, and dipstick guide tube. E46 (3 Series) rear-wheel drive only Part Number Description Quantity 11 61 7 534 237 Oil Separator Repair kit 1 11 43 7 565 437 Dip Stick Guide Tube 1 11 15 7 532 629 Hose 1 E46 (3 Series) all-wheel drive only Part Number Description Quantity One of my Sacramento, CA area indy's, Valley Motorwerks (916-636-9526) did mine for 2.1 hours ($210). At that rate, and due to the delicate nature of the parts and any resulting damage my hamfists and anger mgt "issues" would most likely reap during such a delicate operation, I thought it was well worth it. On the replacement for the e46 (e90) the CCV was moved inside the valve cover and the CCV lines get electric heating to avoid the frozen issue potentially engine destroying condition. That in itself should tell you that BMW goofed big time on the design of this unit. 95 posts · Joined 2011. #1 · May 7, 2012. I have a minor oil leak which appears to be at the connection point where the vent pipe (hose) from the valve cover attaches to the CCV. I say it "appears" to be there because as you know you can't see much down there. I can see oil grime at that spot but it's impossible to say that connection is to Kit contains the following parts. Part# 11617501566 Crankcase Vent Valve By OEM. Part# 11157532649 Vent Valve to Oil Dip Stick Tube By CRP-Rein OEM. Part# 11611432559 Vent Valve to Valve Cover By CRP-Rein OEM. Part# 11617504535 Connecting Hose from Vent Valve By CRP-Rein OEM. Part# 11617504536 Return Pipe from Connecting Hose By Febi-Rein OEM. .

bmw e46 ccv valve symptoms