Hi guys, I’m so slow partly real to despair. History: Drive up to an accident a c30 1.6d 550.tkm without problems. Once turbo flatt, twice injectors sealed, otherwise standart maintenance that the motor lamp bugs me, I didn’t know that, but had the car also made new and from the beginning everything neat, nothing maintenance jam. After the accident the dealer I knew for a long time turned on me and trusted a real kack c30 d5 automatic, but well that’s another T hema, in the end it turned out that the car was very much out of order, most sleepy maintenance / maintenance jam and built-in errors. The previous owner was by the way Volvo mechanic and a real slut. Everything was finally over. At first the car needed even 1l oil on 2000km, strangely, the after the oil change was over with oil consumption, where I really wonder how long and how much over interval was the Plörre driven… Too much shit I with it I found a worn metal pump wheel of the water pump, which sporadically broke off the circumference or unworlded too little cooling water. The Volvo dealer left me completely in the rain despite the warranty and separate 6 months warranty, even criticized the operating temperature after a few days, well other topic… Anyway, the cylinder pot is torn. Said done and another D5 engine had rectified me (the whole lies with the lawyer). from a v50 accident car installed ( with 80,000km ) As far as the engine runs great, but again and again comes the message, maintenance engine required.” Meanwhile the message always comes. Had also many other errors from the beginning, some I got away but not all. e.g. I always had the obd error 1603 Throttel unit internal fout etm code. After the engine noise with main wire exchange, the error remained unfortunately. Built another Volvo throttle flap, but the error remained. Also I was n I was very surprised that they didn’t see anything from the error in 1603, but I still got grey. The old main wire harness was bridged with 3 veins, so the wire harness came in from the accident drive. At first I had problems, which the dare sporadically did not start again. ,,,Roßdahhrsperrke again came in with the accident drive. At first I had problems, which the dare sporadically no longer started. “Well, with a lot of fugitive and cleaning on the connector in the fuse box that connects the main wire harness to the motor control unit in the wheelhouse, the car ran again. I could reduce the errors to three that are only gray but never completely disappear. As yellow sporadic or red permant, the errors with the obd tool todque are not shown to me, only as gray, but you don’t get them away. ( ECU flattens? ) Remarkable is that the motor control unit at the bottom of the walk Externally oxidized, because the whistles have a hole for the overbrück cable in the housing. Anyway, the control unit looks like it was open once and the cover was not screwed properly to a screw. (The old wire harness was bridged with two veins ) What is totally annoying, when the engine was replaced the automatic was empty ( Was incredibly dirty broth, where I myself did not believe that the automatic was felt at 180,000 as claimed. ) Well, be the ha t the automatic a switching error, into the fourth gear it slips through briefly, after several oil suction and fill after, it became all better. Will repeat this or let rinse and hope sometimes… Have really the muzzle Full… So in itself the car stands now quite well, cross handlebars, stabis, all wheel bearings, brake discs and coverings are new, engine storage also, throttle flap also, air conditioning service, all filters, everything new. Vida with interface I got, starting from he doesn’t get it yet running with win10…); Now my question needs to be called or reset after an oil change / run empty? From the beginning I have the problem, as soon as the car quietly drives in thrust mode e.g. exactly 50kmh jumps the speed up and down (no switch) as soon as the Thempomat is on, the haunted is over or when I switch to manual, then the speed is immediately raised minimally and no longer jumps up and down. I sometimes thought that some spring and pressure-controlled valve in the hydraulic control block, is jammed or not doing what it is supposed to do. It only happens when the automatic works unloaded. Always in the range 1300-700rpm so with quite little oil flow in the automatic. Have already looked at the plans of the hydraulic unit, there are a lot of spring valves in it, I don’t know what is better now, try to flush (which also costs charcoal again) or directly at the control go block, take out each valve and manually check for foreign objects or something like that? If you switch to manually the speed is generally raised minimally and in about this way jumps on d sometimes the speed 100-300rpm up and down. At the same time, the automatic looks rough for a short time, feels really like something is switching which should not switch. I totally annoyed, wants to have the car now also perfect… The automatic was really brutally dirty, I have never seen that before… Well and to the incidents “motor system maintenance required” I am currently quite perplexed. I cleaned almost all e plugs on the car. Supposedly the value gas recirculation sensor would be high. Gas temperature sensor high Now I looked at with my obd tablet two o2 sensors, the one sensor there jumps doe voltage back and forth, the other one stands permanently 0.17volt and this value does not change either, this could be the cause of error message, after the motor, sensor flatt? Am not now to me whether something is with the Agr, or just a lambda probe is fucked off or the error is in the electrics. Agr was probably once at 240,000renewed now hasbder car 340,000km fuel filter I just renewed, air mass meters just cleaned for safety, according to my obd tablet works well the air mass meter. Already annoying enough that the speed fluctuations with the exchange throttle flap could not be fixed. Ask me really from where still the wrong it should come in 1603 enthrontel unit and whether something else is meant or even my motor control unit has one away? The nasty thing is that there were many errors, for example, the plug-in connection in the fuse box, which the old wiring harness has already been manipulated and the motor control unit looks like it was opened once. As far as the car runs really great, pulls well and does not consume too much. Somewhere the worm sits inside, laptop bought, vida bought and now the fuss does not run Is a sensor broken, is it in the plug-in connection, or even on the control unit or is it the agr. ?? Somewhere this scissor worm is in or two worms directly together. Also I have to say that water vapor came into the exhaust through the engine damage. and the dare then stood for two months. This, motor maintenance needed” came at that time absolutely spradically but from the frequency became more and more and more and now permanently. I solve the control unit (e.g. at the connector) The report is gone for the first time, once kick down and swubs the report is permanently back again. Sad but was, this car was driven by an absolute Kevin Volvo mechanic. All I grabbed was shit, whether, diesel filter, whether air filter, whether pollen filter, everything was more than overdue and apparently the smart Kevin during the timing belt change also the water pump. not changed, because it is made of metal and does not have to. ( Thanks Kevin du Vollhorst, 40€ saved, mot or flatt… ) My first set of tyres was eaten by the car in two weeks away, the brake discs hit the first autobahn ride/brake so enorn that the steering wheel was slaging very frequently. ) wheel bearings broke after 4 days. Drive shafts were dried up, brake at the back even. The Volvo workshop didn’t get it even after I criticized the xenon light this high, until I looked myself and noticed that the height encoder had been mounted wrongly around, nic Well, not for nothing everything is with the lawyer, too much is too much… The ass did nothing but send me away and not his written guarantee promise to keep one. To the abrasion problems of the front tires I got from that still the tip to take the feather leg minimally out of the axe to get the fall into the grip ?? actually were only the cross handlers through. All in all was really extremely much and the Volvo handle r didn’t do anything at all. Well, he’s being sued now, that’s more than worth it. Well, except for this last time dinner, I’ve got a really nice c30 with a young engine, a new suspension, etc., running and driving really nice. It stayed: -sporadic speed fluctuations, which are really annoying. p1603 Throttel unit internal fout etm code p2033 Gas recirqulation sensor high range Gas temperature sensor high range Well, I’m grateful for every tip, whether for the automatic, egr or a bgas sensors, control unit and plug-in connection. Would now renew the sensors, possibly send the control unit away and let it check yes and let the automatic either rinse, even a few times suck off and new oil in until it becomes cleaner. Or actually expand the machine, and have it repaired. Each step costs money and does not want to initiate unnecessary steps of course. All in all, I have put already quite easily 4000€ in the car, most of the natür I think once everything is solved, I actually have a really great car with a horny machine that is still very young. Actually I want to have this thing technically in a new condition and would be really happy to get the last time food removed. Just a very corrosive thing, because the errors at various places come into consideration e.g. at the wire harness plug connection. I think that’s okay now, at first there were definitely contact problems. so I find it difficult to say, yes sonde broken, control unit has one away, error in the wire harness or voltage waste/changes in the plug connection? The error Throttel unit internal fout, stayed at least and was there from the beginning. The other wire harness and the exchange throttle flap did not change anything about it. Well, what’s wrong with the thing, runs really clean and good is even in under 6s from 0-100 there is nothing to m Eckern. I would like to make the plug-in connection completely new, but that is also sometimes anything but just and there I think to myself,, I can almost flatten a new complete wire harness. ) I don’t know, I don’t know anymore and also believe in double errors. What do you think, the speed fluctuations come from the automatic itself? If someone does something with it, I can also film it sometimes, as said with Thempomat or on manual, the fluctuations are immediately gone. I come it really is so that something in the hydraulic block is wrongly operated, a valve which opens and closes even though it should only be open or closed? I often had similar things in priority valves, on forklifts that pick up from the hydraulic pump, a control pressure for the power steering, with these suddenly or sporadically the steering becomes heavy and since this spring tightened valve likes times. After I looked at the scheme drawing from the automatic, I saw the vi ele such valves are installed. Is already a heavy hydraulic block I would say like a microship only hydraulic. Well, if a valve by Smutz or particles does not always work properly or the tension spring is tired or an oil pressure does not arrive properly or a valve has already called in the control block… A proper flushing also costs 300-500€, would upset me completely if this does not work and I can still remove/ send the machine away or to the St. I’m grateful for every tip.