I'm in a bit of a spot with my 2014 A8 – the transmission started slipping between 4th and 5th gear and my regular garage said they don't touch ZF boxes because they're too complicated. So now I'm hunting for someone who really understands these units. I came across a few places claiming they have an Expert Transmission Specialist Sharjah, but when I called, the receptionist couldn't even tell me what fluid they use. Has anyone here actually had a successful rebuild done in Sharjah or nearby? I don't mind paying more if the job is done right once, but I really don't want to be the guinea pig for someone learning on my car. Real experiences would be super helpful right now.