1840165 BPV valve 1840165: symptoms, fault codes and OEM cross references.
Earlier MX-13 Euro 5 back pressure valve group for XF 105 and CF 85. Use this page for 1840165 and related PE/PEX search terms.
What drivers and mechanics usually notice.
These are practical, workshop-style symptom phrases written for search and support conversations. They are not a substitute for live diagnostic data.
Loss of pull with a trailer on rolling roads
Whistling or hissing around the hot side under engine braking
Rough idle or occasional stall after throttle lift
Extra exhaust smoke when the flap hangs partly shut
Poor fuel economy and weak engine brake on long descents
Why 1840165 usually fails
- Exhaust carbon packs around the flap and worn shaft.
- Heat-damaged actuator internals stop commanded position tracking.
- Exhaust pressure leaks across worn parts and the engine brake loses force.
Before replacing the part
- Look for shaft wear and pressure leakage before deciding whether regeneration is possible.
- Record engine-brake performance and pressure-control codes together.
P-codes reported with 1840165.
| Code | Lookup hint | Related symptom area |
|---|---|---|
| P0027 | Exhaust valve / back pressure control range issue | Loss of pull with a trailer on rolling roads |
| P006B | Pressure correlation issue, often checked with BPV/exhaust pressure faults | Loss of pull with a trailer on rolling roads |
| P047C | Exhaust pressure sensor / pressure-control signal low | Loss of pull with a trailer on rolling roads |
| P047D | Exhaust pressure sensor / pressure-control signal high | Loss of pull with a trailer on rolling roads |
| P101E | BPV actuator cannot reach commanded position in report data | Loss of pull with a trailer on rolling roads |
All numbers grouped under the canonical 1840165 page.
Keeping every duplicate and replacement number visible on the same canonical page helps exact OEM searches without creating hundreds of duplicated pages.
Truck, engine and year ranges from the reports.
| Truck model | Engine | Years | HP |
|---|---|---|---|
| XF 105 | MX-13 Euro 5 | 2010-2013 | 410-510 |
| CF 85 | MX-13 Euro 5 | 2010-2013 | 410-510 |
Fitment is structured from user-provided reports and must be verified by VIN, installed connector and physical part markings before supply.
Questions about 1840165.
What are common failure symptoms for 1840165?
Common symptoms include Loss of pull with a trailer on rolling roads; Whistling or hissing around the hot side under engine braking; Rough idle or occasional stall after throttle lift; Extra exhaust smoke when the flap hangs partly shut. Exact symptoms vary by truck, software level and related faults.
Which fault codes are linked with 1840165?
Reported fault codes include P0027, P006B, P047C, P047D, P101E.
Can I order by OEM number 1840165 only?
Use the OEM number as a starting point, then confirm by VIN, engine type, installed connector and part photos because some reports contain duplicate or conflicting OEM references.
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