The missus has a 1.6 diesel C4 Grand Picasso. She mentioned that she couldn't move it 'cos the gearbox was frozen. Had a look and sure enough it's very stiff indeed. Obviously it was crazily cold up here yesterday ( -6°C in fact) but surely the gearbox shouldn't freeze should it? The only other thing I was thinking of was a massive gearbox oil Oil leak on the automatic gearbox of a Citroen C3 Picasso: Discover the origin of the leak, and replace the concerned gasket, get it conducted by a specialist, opening a gearbox is not easy. It will cost you a few hundred euros, especially for the labour. Do not think twice to read our content page on gearbox oil leaks on Citroen C3 Picasso. Heat your Mazda CX 3 for about 10 minutes to get a fluid oil, place it flat on 4 stands. Install a drain pan under the drain plug, open it, and clean it well because it will likely gather filings. Let all the oil run out until it’s all gone. Change and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s CITROËN C4 Picasso II 2.0 BlueHDi 150, CITROËN C4 Picasso II 1.2 THP 130, CITROËN C4 Picasso II 2.0 BlueHDi 135, CITROËN C4 Picasso II 1.2 THP 110 The steps may slightly vary depending on the car design. Important! This tutorial was created based on the replacement procedure for a similar car part on: CITROËN XSARA PICASSO (N68) 2.0 HDi Oil leak on the automatic gearbox of a Citroen Xsara: Discover the source of the leak, and change the concerned gasket, get it achieved by a specialist, opening a gearbox is not easy. It will cost you a few hundred euros, especially for the labour. Do not think twice to read our content page on gearbox oil leaks on Citroen Xsara. C4 Auto Gearbox AL4 Oil Change Proceedure Author: Citroën: Description: C4 Auto Gearbox AL4 Oil Change Proceedure: Image: no image available : Filesize: 138.92 kB: Date: 12 July 2011: Downloads: 92: Download: Rating The low end for an automatic transmission fluid change interval is around 30,000 miles (a little under 50,000 km). If you can't find the service interval for your particular transmission, you could do a lot worse than just use this interval as your guide. Other typical service intervals are 60,000 miles (approx 96,000 km) and 100,000 miles Change CITROËN C4 Automatic Transmission Fluid yourself – manuals and video tutorials. Helpful guides and tips on replacing CITROËN C4 Automatic Transmission Fluid. Heat your Ford C Max for about 10 minutes to get a fluid oil, place it flat on 4 stands. Install a drain pan under the drain plug, open it, and clean it well because it will likely collect filings. Let all the oil run out until it’s all gone. Replace and tighten the cap, then fill with a syringe through the filler cap with the manufacturer Purchased a used Citroen Grabd C4 Picasso 1.6 e-hdi auto (ETG6) yesterday. I feel like there is something wrong with the gear change. When the car is accelerating, and there should be a gear change, it feels like there is a short powerless before the gear change happens. The revs don't drop. Best way I could show it is by the graph attached. dVHRd8Y.