On the 1.5 dCi engine, the EGR valve feeds into the intake. Over time, the EGR system can fill the vacuum pipes with oily sludge or carbon. If you remove the solenoid valve and liquid oil drips out of it, the pipes are contaminated. You will need to replace the valve and clean/replace the vacuum lines, or the new valve will fail quickly.
Three hours later, she was drowning in forum threads. One post, from a user named ScenicSaver in a deep-fried Renault forum, caught her eye: “DF045 on a 1.5 dCi is almost NEVER the turbo. It’s the vacuum system. Check the black plastic pipe behind the engine block. It rubs against the EGR valve and perforates. A 10-cent piece of silicone hose and ten minutes of swearing.” df045 renault scenic
The moment of truth. She turned the key. The glow plug light flickered, then died. The engine turned over once, twice—and caught. No shudder. No whine. Just the steady, diesel hum of a healthy Scenic. On the 1
The brake may work perfectly in automatic mode but trigger a warning when you use the manual pull-switch. You will need to replace the valve and
Understanding which one is affecting your vehicle is the first step toward a cost-effective repair. 1. The Most Common Culprit: Electronic Parking Brake (EPB)