Blue smoke on extended idle. 2006 4.8is.

[pezho405]

Originally Posted by BigBlack48is

Keep us posted late next week with your findings

Just made a seprate thread, Check it out!
http://www.xoutpost.com/bmw-sav-foru...e-problem.html

[BigBlack48is]

Originally Posted by pezho405

Just made a seprate thread, Check it out!
http://www.xoutpost.com/bmw-sav-foru...e-problem.html

You started another thread that proved nothing and killed the old one...

Way to go!

[pezho405]

Originally Posted by BigBlack48is

You started another thread that proved nothing and killed the old one...

Way to go!

Eh to be fair i did have other stuff in the thread besides smoking

[TerminatorX5]

2006 E53 X5 4.8iS N62 engine
bought in June 2012 with 66K miles
May of 2013 - 88K miles

last oil change April 26, 2013 at 85K with Castrol 5W30

Blue smoke on extended idle...

ordered two CCVs from BMW of Fairfax, online price $17.24 each + tax...

popped the 4 screws off the "6-pack" (engine cover sculpted after a bodybuilder's chest), wiggled out the side plastic covers with BMW letters,

popped the left CCV (left as the forward direction of drive), membrane is intact - still replaced it...

popped the right CCV... torn!!! see the pics... replaced the CCV... made sure everything is snapped together firmly, put everything back together...

used Artyom's method of idling in driveway (I was doing something else, and let the car idle), after 15-20 minutes hit the gas - still smoke!!!

Next course of action - engine flush with LiquiMoly, new oil (bought 10 qts Castrol 5W40, was at Autozone on promo at $30 for 5 qts + FRAM filter, I got 2 filters for the neighbor's GMC and Town and Country), will be using 2 bottles of Auto-RX to add to the new oil...

got 4 oil filters from BMW of Fairfax (they are local to me, about 40 miles), $15.35 each + tax.

Never changed oil in any of my cars, even though worked on them, will be doing change myself... wish me luck...

[pezho405]

Good luck! Udachi! Hmm i didnt flush when i changed the oil but maybe it will help you out more, for me it has gotten better so far

[4.8isX5]

Goodluck, the heavier oil should help, mine only occasionaly smokes a tiny bit now, also i havent gone thru oil like i used to..

Success to me, even if it just holds off the seal repair

[TerminatorX5]

question on idle -

i noticed a strange behaviour,

the engine idles around 600 RPM, as evidenced by internal tests, all normal...

then the idle spikes briefly to about 800 and then falls back to 600

this happens so fast that the test function registers this for a brief second

this happens even when the car is in gear, and say, if i am backing up, with a foot on the brake, the idle racing would feel as if i am using one foot on brakes and the other foot on the gas simultaneously... again, for a brief moment... i can reassure you, my foot is NOT that wide to stay on the brake pedal and slip onto gas at the same time...

I cleaned the MAF (mass air flow sensor) with MAF cleaner, the issue is still there. I have K&N air filter coming in sometime today, will replace it as soon as it arrives...

Any suggestions?

No engine light but I have not connected the comp to see if there are any codes and to read the live data off the engine... I need to revive my XP machine to do just that...

[pezho405]

Dont know but ill ask a BMW tech on wednesday. '

Anything like this guy:
http://www.xoutpost.com/bmw-sav-foru...wed-spike.html

[TerminatorX5]

yes, very similar, even when in a gear... sometimes the surges are not as pronounced, as if the system detects them and tries to compensate... I just feel the change in the rotational frequency on the foot, when the foot is on the brake... when the car is in forward motion, i don't get to feel it... when the car is idling at a stop sign, i feel the change in engine speed under the foot, most times not enough to register on the analogue needle nor on the digital readout...

suspect air management - cleaned the MAF, waiting for new filter... can't hear any vac leaks but it doesn't mean anything... the CCV was torn, and no sound - besides, i am getting old, and don't hear nothing!!! lol...

planning on doing the engine flush and fuel filter change, as one of the other symptoms, the car lost its power on demand feature - when engine is relatively cold (5-10 minutes of driving from cold), and i need to merge onto a highway, when i hit the gas, it stumbles... besides pure embarassment - 4.8iS not capable of merging into traffic, it is outright not safe... i am there like a sitting duck, trying to go, and it doesn't go... lol...

so, flush, fuel filter, air filter... we'll see what happens next...

[TerminatorX5]

Found this on e90fanatics board - might be related to the idle issue... still studying availble info...

SIB 13 01 07

SUBJECT
Fuel Injection and Induction System Cleaning

SITUATION
Deposits found in the injection and induction system may cause the vehicle to experience a variety of drivability complaints, eventually leading to the Service Engine Soon Lamp to be illuminated. Some of the possibilities are listed below.

Fuel Injectors

Deposits at the fuel injector's tip can impact fuel flow, disturbing the air/fuel mixture ratio.

Symptoms are the following: Hesitation or stumble during acceleration or even loss of power; poor fuel efficiency; increased emissions of HC and CO; and "Service Engine Soon" light illumination due to misfire faults, or lean mixture adaptations.

Intake Valves

Deposits at the valves and on the intake manifold ports can absorb fuel during the warm-up phase, leaning out the air/fuel mixture ratio. Carbon build up may disturb the mixture flow at low throttle conditions and/or idle speeds.

Symptoms are the following: Poor drivability; loss of power; unstable and/or rough idle; increased emissions of HC, CO and NOx; and "Service Engine Soon" light illumination due to intermittent misfire faults.

Combustion Chamber

Combustion Chamber Deposit Interference (CCDI) occurs when there is contact between carbon deposits on the piston crown and the cylinder head. The noise can be confused or misdiagnosed as a ping, knock or other noises that could indicate a mechanical failure. CCDI occurs first as a cold start noise that can fade as the engine warms to operating temperature. The noise will reoccur at the next cold start. As deposits build, there is an increase in compression temperature that may cause pre-ignition detonations.

Symptoms are the following: Knocking; pinging; run-on; poor acceleration; octane requirement increase; increased emissions of NOx; and engine idle speed surges.

Depending on the manufacturer, fuels may contain various additives such as: oxidation and corrosion inhibitors; metal deactivators; emulsifiers; and anti-icing agents and dyes. In addition, they are required to include some form of an intake system deposit control package. Unfortunately, not all fuels are created equal, and some additive packages are not effective enough to maintain the integrity of the intake systems in high performance engines, or engines operating under severe environmental conditions. Even worse, the intake system deposit control additives in some fuels may actually contribute to the combustion chamber deposits accumulation and to the problems associated with those deposits, i.e., knock, run-on and increased emissions of oxides of nitrogen.

To remedy these complaints, the BMW Group has developed a new special tool and cleaner concentrate to clean the fuel injectors, induction system and combustion chamber of harmful deposits.

NOTE: This tool is designed to be used with low pressure fuel injection systems. This material or tool should not be applied to a vehicle utilizing the High Pressure Injection System.

Refer to the attached procedures described below by model. It is recommended that two applications be made consecutively on each vehicle. If more applications are required, please contact the Technical Hotline via PuMA.

Procedure A – All vehicles equipped with the M54, N52, N51 and N52K engines

Procedure B – All vehicles equipped with the M56 (SULEV) engine

Procedure C – All vehicles equipped with the N62, N62TU and S85 engines

Procedure D – All vehicles equipped with S54 engine

IMPORTANT: Before starting the cleaning procedure, place the vehicle in a well-ventilated area. If the cleaning procedure occurs indoors, be sure to have the vehicle connected to an exhaust removal system. It is necessary to wear Nitrile rubber gloves and safety glasses during this procedure.

The shop air supply should be dried using a general purpose filtering system; the tool is not recommended for use with a lubricating system.

FINAL PROCEDURE FOR RELEASING THE VEHICLE TO THE CUSTOMER
Advise the customer that it is necessary to add one bottle of BMW Group Fuel System Cleaner Plus PN 82 14 0 413 341 with either TOP TIER Detergent Gasoline or Premium Fuel, with a minimum octane rating of AKI 91, the next time that the vehicle is refueled.

For optimum cleaning, advise the customer to add one bottle every 3,000 miles when refueling. Refer to SI B13 05 06 BMW Fuel System Cleaner Plus.

More related information regarding fuel systems and fuel additives can be found in the following Service Information Bulletins:

SI B13 01 06 Alcohol Fuel Blends in BMW Vehicles

SI B13 02 06 TOP TIER Detergent Gasoline in BMW Vehicles

SI B13 04 06 Alcohol Detection Procedure

SI B13 07 06 Gasoline Quality & Detergent Additives – Customer Information Brochure

WARRANTY INFORMATION
Because carbon deposit build up is related to fuel quality, it cannot be considered a defect in a vehicle's materials or workmanship. Consequently, performing the BMW Group Fuel Injection & Induction System Cleaning Procedure is not covered under the terms of the BMW New Vehicle Limited Warranty or maintenance plan.
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