Let’s be realistic. The best is the official ETAI digital download or the PSA Service Box leak. A free scanned version can save you €30, but it might cost you hours of frustration if page 47 (wiring diagram) is unreadable.
: Most HDi engines require 5W-30 fully synthetic oil meeting the PSA B71 2290 specification to protect the engine and diesel particulate filter (DPF).
: This is the gold standard for French vehicles. C3 II (2009–2013) : Look for RTA 841 which covers the 1.4 HDi (70 hp) and 1.6 HDi (90/92 hp). C3 I (2002–2009) revue technique citroen c3 hdi pdf best