bmn engine problems
Check engine light diagnosed as failed thermostat.
Reduced power" Expansion tank was found to be cracked and leaking at base.
Cam Bearing Ledges & Fuel Injectors replaced Running rough and oil pressure warning light illuminated several times, Oiling system failure caused oil starvation to multiple internal components requiring an engine replacement, Replaced ignition coils and spark plugs Oil leak from oil filter housing gasket, water pump failure and replacement @1,500
Estimated cost to clean $2900.
Dealer replaced 6 fuel injectors/spark plugs per BMW NA. I am planning on asking BMW for reimbursement of repair. Had warranty take care of it.
Fan and hose replaced.
Engine had rod knock.
Brought the car in for service, and only issue I had was with a long crank in the morning, which they said was a software update. Replace low pressure fuel sensor and the problem persists. Both tensioners replaced as well as serpentine belt. Car smooth and running fine (so far). Noise from engine pulleys and idler. The first was on recall that pump failed. Part is 100 dollars each, bought two since people say both are likely to go out one after another. Replaced. Dealership still not sure what problem is. Removed manifold and cleaned valves.
Oil leaking.
Also replaced other cooling system components as a preventative measure. If not head gasket is bad.
Belt driving alternator was slipping due to faulty tensioner. Intercooler hose was ordered from Germany and took 2 weeks. Dealer took 2 tries to resolve. Water pump failed. longer time required for xdrive BMWs. My 2008 Audi A3 2.0 Tdi BMN engine - mileage 150k, has had been a bad cold starter for about 2.5 years.
Coolant expansion tank leak. High pressure fuel pump replaced under extended manufacturer warranty. Problem trace to tensioner belt and defective bearing. Water pipe to expansion tank hose leaking. New thermostat. Discovered significant coolant leak and replaced cracked expansion tank.
Motor mounts are failing will be replaced soon. Still at Dealer who took it back to Auction House in Odessa for arbitration, who forced seller (Passport BMW in MD) to fix. seat rattle.
Entire Turbo was replaced since it was leaking oil that was leading to excessive smoking when started after long breaks. VANOS solenoid (2) were sticking causing barely able to idle and erratic throttle. Catalytic converter died, resulting in check engine light. Check engine light was for Cracked Intake Hoses & Leak Detection Pump. Changed Eccentric Shaft Sensor after rough idling and loss of power above 3000 rpm, which also required changing valve cover gasket (total ~$1300).
fixed in return visit. This is a common problem on all E46 models. Replaced myself. Replaces including thermostat.
The SES light came on, it ended up being the engine thermometer that went out. Remaining coil packs were replaced as well as spark plugs to try to fix this issue, but it did not.
Coolant low, suspected leak. Oil Weeping from front top of motor near oil filter housing. Replacing faulty crankshaft sensor Replaced faulty thermostat. BMW repurchased the vehicle - mechanic I spoke with thought it might be due to excessive carbon build-up as a result of direct injection. Fuel pump failed, pump and filter replaced Air pump replaced. Slapping noise from rear of engine was diagnosed as a loose spark plug. BMN / BKD engine judders / misfires at idle.
Check engine light came on. oil change.
High pressure fuel pump died, car broke down and was towed to dealer. One of two mufflers was replaced under mfg warranty. Too expensive to repair.
Then repairs could continue. Dealer replaced O-ring at no cost. The water pump ceased and the radiator expansion tank exploded releasing all the coolant. Oil gaskets replaced and cleaned oil sludge inside the engine.
Oil leak at valve cover gasket bolt seals. Was repaired under extended M56 SULEV warranty. SES light on. Replaced valve cover gasket and valve cover bolt washers.
Known vulnerability with this engine. Issue traced to failed water pump. Computer first said car needed brakes, then found to just be a computer error requiring a re-flash. Oil pressure lights came on 10 minutes after getting the car brand new Faulty oil pressure regulator valve. When we replaced the fan clutch, the water pump pulley shattered, being one of the lame plastic ones.
The electric thermostat failed and had to be replaced.
Head gasket replacement.
Returned to dealer, found problem with LPFP (low pressure fuel pump). Car limped home.
Then reset light and it never returned.
Most expensive oil leak(s) I have ever had to fix. Crankcase vent valve problem, also required new valve cover. Replaced the high pressure fuel pump with new unit.
I was quoted $1500.00 for the repair at dealer so did myself. Reduced power. Most of the cost was labor, over 15 hours at $115 per hour.
DCT LAG ISSUE 2. Radiator coolant expansion tank failed. New coilpack installedrnNew ignition coils, Coil pack replaced because misfiring, spark plugs done as well. grounding strap corroded Idler pulley cracked causing loud belt noise.
The Car: Golf v 2.0 tdi GT 170 BMN engine.
Plastic molded engine intake charge pipe cracked at pipe seam. Cracked ignition coils on #1 and 2 cylinders.
Replaced valve cover. IDLE AIR CONTROL VALVE FAILURE KNOWN ISSUE WITH M3, Replace sticking thermostat, temp sensor, and vent hose
Oil leak notied during water pump repair.
Oil filter housing gasket began leaking.
It was replaced under a manufacturer program. Problem resolved. Also new front rotors and new pads all around. Oil leak - replace valve cover and gasket Oil leak - reseat oil filter holder.
Oil filter housing casket leak.
Problem a gasket needed replacement.
Engine thermostat Fuel filler sealing pump, Railing for timing chain had worn, needed to be replaced. Head Gasket was leaking. Replaced expansion tank and upper and lower radiator hose. Air Mass Meter Boot had a small hole. Purchased OEM part and repaired it myself. Scan shows ignition coil #5 is the problem. Burning oil smell, noted as leaking valve cover gasket. In cases like this, you may notice nothing more than a bit of lag upon acceleration and some extra turbo whine.
BMW Dealer could not identify cause of problem.
continued oil leaking out from top engine gasket(small amount) Replaced the radiator - again. Engine replacement could not be completed by independent shop. When under hard acceleration, the car would not engage the gear for up to 3 seconds. Water in oil, removed, resurfaced and replaced head.
The error codes were cleared but I am still having a hard shift between 1st and 2nd gear. I also changed my brakes front and rear. A coil on #6 cyl shouldn't fail with only 52K miles!
Valve cover gasket (VCG) repair. Engine oil leak at oil filter housing base. Coolant replaced since it was drained during work. Issue addressed in a BMW TSB.
Replaced expansion tank, radiator and valve cover gasket. Replaced Thermostat, Water Pump, Coolant Sensor, and Radiator.
7 is the code for a V12. Power steering failure. Engine Valve gasket replaced, there was a slight oil leak developing.
Upper Radiator, cracked elbow.
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