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Reverse issue
So this has happened to me two times now, over the 6 months I have owned the car..
Trying to reverse up a steep hill, the engine will rev to ~1800rpm and then it seems there is no power. No matter how much throttle I press, nothing happens. The first time the car didn't move backwards at all (front wheel was outside the edge of the road, so it was extra tough), the second time the car was filled with people (everybody got out and then I managed to get the car up the hill). Am I looking at two months salary for a remanufactured gearbox, or could it be an oil issue ? Previous owner claimed the oil was changed when he bought the car, but it wouldn't be the first claim that turned out to be wrong... No fault codes of course.
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06 A8 3,0TDIq My daily driver and project... 97 A4 1,8Tq. Powered by a 4,2 from the '01 S6, full rollcage, FIA seats and 6-point harnesses, B5 RS4 KW Competition race suspension, B6 S4 brakes, 18" Toyo RS1 slicks, carbon fiber roof. V8 trackday racer 14 VW Caddy 1,6TDI from my employer.. (X)00 A8 2,8q, (X)97 A4 1,8Tq, (X)92 S4 2,2Tq, (X)92 80 2,3E Last edited by peiiider; 11th January 2017 at 09:34 PM. |
#2
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Check gearbox oil first , the car being on such an angle on the road maybe allowing the sump pick up pipe to draw air if the oil level is low to start with .
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#3
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I have had the same problem reversing up my drive which is a hill if I am also driving onto ramps at the same time. I thought it was some clever effect of the reversing sensors beeping on the bins preventing implausible amounts of power. Were your parking sensors beeping? It's definately engine power restriction, not the gearbox or it would be 5000rpm.
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#4
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No parking sensors activity while this has happened for me..
I guess it has to be the engine restricting the revs like you say, maybe the car has to reach a certain speed before it lets the revs rise higher ? But then it's back to a gearbox issue, why it doesn't lock the clutches to increase the speed.. And if there is something wrong that tells the engine to reduce torque, why doesn't it throw a code..
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06 A8 3,0TDIq My daily driver and project... 97 A4 1,8Tq. Powered by a 4,2 from the '01 S6, full rollcage, FIA seats and 6-point harnesses, B5 RS4 KW Competition race suspension, B6 S4 brakes, 18" Toyo RS1 slicks, carbon fiber roof. V8 trackday racer 14 VW Caddy 1,6TDI from my employer.. (X)00 A8 2,8q, (X)97 A4 1,8Tq, (X)92 S4 2,2Tq, (X)92 80 2,3E |
#5
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Why should it if that is how it is designed/documented to work?
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions and extended leather. Ski hatch retrofit. Aftermarket reversing camera. DVB-T and XCarlink now removed as redundant. 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (Even rarer than a D2 S8!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. Agate Grey/Platinum. Every option (I think) except electric rear seats, Tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later) 1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon. Added Auto-dim mirror, Leather seats, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! |
#6
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But I really don't think my 450nm TDI is supposed to struggle reversing because of a hill..
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06 A8 3,0TDIq My daily driver and project... 97 A4 1,8Tq. Powered by a 4,2 from the '01 S6, full rollcage, FIA seats and 6-point harnesses, B5 RS4 KW Competition race suspension, B6 S4 brakes, 18" Toyo RS1 slicks, carbon fiber roof. V8 trackday racer 14 VW Caddy 1,6TDI from my employer.. (X)00 A8 2,8q, (X)97 A4 1,8Tq, (X)92 S4 2,2Tq, (X)92 80 2,3E |
#7
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But if I am on the flat in R and put my foot down, it will shoot off as expected but will test again at the weekend.
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#8
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Yes same thing here, on flat ground it shoots off in R like I think it's supposed to.. Thats why I believe there is something wrong..
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06 A8 3,0TDIq My daily driver and project... 97 A4 1,8Tq. Powered by a 4,2 from the '01 S6, full rollcage, FIA seats and 6-point harnesses, B5 RS4 KW Competition race suspension, B6 S4 brakes, 18" Toyo RS1 slicks, carbon fiber roof. V8 trackday racer 14 VW Caddy 1,6TDI from my employer.. (X)00 A8 2,8q, (X)97 A4 1,8Tq, (X)92 S4 2,2Tq, (X)92 80 2,3E |
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