Df137 Renault Clio 15 Dci Link Now
To understand the fault, you have to understand the "link" between the components. The 1.5 dCi uses a variable geometry turbocharger (VNT). Unlike older turbos that rely purely on a wastegate, this turbo has internal vanes that adjust to control exhaust gas speed.
Here is the chain of command that creates the "link": df137 renault clio 15 dci link
DF137 occurs when step 4 does not match step 1. To understand the fault, you have to understand
| Code | System | Link | Common Fix | |------|--------|------|-------------| | DF137 | Engine ECU ↔ UCH | CAN + Immobiliser | UCH internal battery / water damage / CAN wiring | DF137 occurs when step 4 does not match step 1
If the system is reporting a coherence fault, one of the links in this chain is weak or broken.
Renault released multiple software updates for the Siemens SIRIUS 32 and 34 ECUs used in the 1.5 dCi. Early firmware had a bug where the injection computer would "miss" a handshake with the engine management due to timing errors. This is a no-parts fix: The dealer or a specialist with Renault CAN Clip tool must reflash the ECU.