Got same symptoms of 133710 code: like Rough Idle, when cold start, it vibrates more for 30 seconds, and feeling vibration when traffic light waiting , 133710 on obdii, but not on dashboard engine light. driving fine with it and smooth after warmup. ISTA shows that The code only appears when idling 0km, with high temperature. So when cold start wont appears, and when driving no appearings. only appear when warmup n waiting traffic light or stop car waiting for people etc... now All know it after ISTA diagnose.
Please see my video for detail of my solution and the relevant parts I changed.
What I did are the below actions by the car repair shops, but didnt work. Anyway, changing those are good for the future use coz they were wear-out and are consuming parts.
-Chinese Chao Yang su318 tires 4x new
-chged low pressure fuel pump and high pressure fuel pump Bosch.
-chged 4x bosch ignition coil
-chged 4x Chinese brand Kinta gingte 鯨特 double iridium spark plugs
-chged air filter Mann
-fixed turbo coolant tube leak: chged 2x o ring
-Cleaned carbon of intake manifold and throttle body, cylinders x2 times
-chged engine oil with filter Mobil 5w30,API:SP 4L, toped up Chinese Lopal 5w40 API:SP BMW LL-04 recognized engine oil 1L after 4000km
-chged valve cover to aluminium and gasket and spark plug o ring.
-chged engine mount rubber 2x and transmission mount rubber 2x
-chged carbon canister solenoid with valve
-chged water pump wheel n friction wheel belt tensioner
-chged transmission oil ravenol 8hp and oil pan, filter, gasket
-chged turbo air intake big black tube.
-chged rubber seal of fuel injectors
-fuel injectors cleaned
-chged fuse top cover
-chged chinese brand SDCX 8 brake pads x4 wheels.
-chged 2x front brake disc bmw brand, 2x back brake disc Chinese brand "胜地 Winhere" . Chinese bosch dot4 brake fluid. 1x left front brake line sensor.
-chged AC filter Chinese brand 鯨特gingte
-BMW DME programmed to latest.
-AC check leak n refrigerant addup
-tested with MAF sensor changed
-tested with Valvetronic eccentric shaft motor changed.
Also:
After changing the eccentric shaft motor, it is still on 133710 fault code, so disappointed.. and stop fixing now, the engineer said all related methods have been tried it's about the eccentric shaft, bearings, spring, rocker arm, hydraulic lifters, camshaft etc stuff inside the valve cover. So needa dismantle the cylinder head, checking piece by piece for all elements n parts, which takes lots of time and effort and money. Because some slight problems/ defects/crack may cause it, not big crack so hard to identify by visual inspection. He suggested me not to fix it coz not worth it since no dashboard engine light or no any fault light unless I actively use OBDII to diagnose it. driving fine n smooth with the code. and it's occasionally happen when idling, then it just stores it in record. wont matter. wait till it hs big problem or daahboard light then have it fixed better.
update for this. did 6 times 120km freeway 1 hr long drive. with 6 bottles of fuel additive carbon cleaner. the code first time auto disappeared without my obd code clear, 2 weeks didnt come agn. good news!! at least it auto disappears, even later it appears agn, which doesnt mean anything, just idling air not enough. now I think it's okay coz 120km with fuel additive carbon cleaner. the cylinder, fuel line, n all rocker arms, hydralic lifters etc mechanics rotating to the fastest ever, which make them loose and rearrange or realign etc .so loosen n the air intake more in, so enough air while idling now.. n dirtiness n mud all spreading out... now shd be okay n temporary solved at least or it is a long term solution already.. happy n content elated jubilant....
Update again, there has been no 133710 error code for more than a month, and the problem has basically been solved. That is to use 6 bottles of fuel oil additive carbon cleaner and run the high way 6 times, each time driving for more than 1 hour at 120km/h. solved! happy! !