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Late DF137s (2009–2012) with a DPF suffer from clogging if used only for short urban trips. The required regeneration cycle (post-injection of fuel) never completes, leading to oil dilution and eventual turbo failure.
The engine wiring harness on the Clio 1.5 dCi rubs against the EGR valve pipe and the cylinder head. Over time, the insulation wears away, exposing the CAN bus twisted-pair wires (usually yellow and green). When these short or touch ground, the is broken. df137 renault clio 15 dci link
