One thing I forgot to say I tried putting Seafoam through the crankcase breather hose. The first two codes above came up so cleared them and drove the car for an hour codes came back! Thanks
timing chain/vanos/top chain guide snapped off. the 2B68 Mass air flow sensor, plausibility caused by seafoam entering the maf sensor, guess you used spray seafoam and did not just start pouring it in breather pipe i hope, i use spray in to air intake, and in crankcase ie add a can to the oil and run for a few miles,Hi mini started to stall intermittently when stopping. Ran codes using autocom CDP + this is what came up. 2845 Vanos exhaust camshaft tight or jammed intermittent 2B68 Mass air flow sensor, plausibility fault intermittent 2891 Crankshaft / inlet camshaft , synchronisation permant Vanos inlet, flank adaptation permanent. Any help would be greatly appreciated.
you find that most of it will be at the bottom of the inlet box hopefully until you floor it then it will get sucked through the motor, i know on seafoams web page its says can do that and chances are it's fine,, me i always use the inlet spray engine running around 3000 revs and spray into the inlet pipe with air filter removed, or on turbo direct injection engines i will use the red long straw and poke it in to the inlet manifold and spray and slowly remove the pipe at same time then shut engine off mid flow leave to stand for over night allows it to soa in to the carbon dirt. i also remove spark plugs and spray with red tube the tops of pistons leave over night then next day crank engine with no plugs in first to clear any liquid to avoid stress the head gasket by engine trying to compress it,Hi Unfortunately poured in slowly about 125 mil read it on North American motering.com! Changed cylinder head gasket cover a month ago and checked top guide rail looked ok and had a new one to compare it to. Seemed fine!
only things you can try easy is changing the oil solenoids for vanos,Hi Mike thanks for that, this sound above my capability! If I took your description to a desent mechanic would they understand and wroughly what would this cost me to sort out? I realised I missed off one code 2870 Vanos inlet flank adaptation Permanent. Many Thanks for you help.
inlet specified 106 actual 120 that would indicate to me that the engine is running out of time by 14 degrees, need to pull the rocker cover off and have a look at chain tensioner plunger anything over 100m showing is worn chain, might even be vanos sprocket faulty or the oil control rings within the camshaft front journal,Update: l looked more closely at live reading I have from my autocom and found when moving along the graph of both the specified and actual positions of the inlet and exhaust Vanos I found both to be similar but there were spikes for example inlet specified 106 actual 120 or exhaust actual 68 specified 98 all were within max/mini range. Could this indicate The solenoid need replacing stil have slight wrought idel after reving the engines?
how much of the tensioner can you see ie the plunger inner part, measure from the body of tensioner to tip of its plungerHi Mike Update: Took cover off. Guides looked ok and chain was tight along the top and down by the tensioner. Ran Scan again this time start up to idel for 10 minuted then increased revs to 2000 for a couple of minutes then raised to 3000 as above then rev from idel to 3000 a couple of times. Looking at the numbers spot on until rev from idel to 3000 then 10/15 off specification. Is this the chain slipping or vanos solenoids not reacting quickly enough? Checked both of them front original part which was stopped in 2009 exhaust solendion first produced 2015.
Also now found oil at bottom of bell housing just by the hole. No visible route from above could that be the rear main seal leaking? Many thanks M
if you have pics of tensioer from the top looking down i can tell youI have pics of that helps?