What does DAF fault code P0049 point to?

P0049 is reported in this data as: Turbocharger overspeed or control limit issue. It can be linked with 1919159, 2154699, 1959915, 2117463 depending on truck model, engine and live diagnostic data.

Can I order a part from fault code P0049 only?

Use the fault code to narrow the diagnosis, then verify the installed OEM number, VIN, connector, actuator type and part photos before ordering or quoting.

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Fault-code lookup

DAF fault code P0049: likely components, OEM numbers and symptoms.

Turbocharger overspeed or control limit issue. This page groups every component report connected with P0049, so a mechanic can move from the error code to the relevant OEM numbers, defect symptoms and fitment checks.

A fault code alone is not a parts order. Confirm with live data, VIN, installed OEM number, connector and part photos before quoting or fitting.

Likely components

Component families linked with P0049.

The same code can appear with different root causes. Use the OEM number and symptom pattern to choose the right branch.

Turbocharger

1919159 · HE400VG turbo, early MX Euro 6

Holset

Early HE400VG variable-geometry turbo used on DAF XF/CF MX engines. The repeated reports point to hot-side vane binding, actuator travel errors, oil-coked bearings and underboost complaints.

Top symptoms

Loss of power uphill or under trailer load
Limp mode after sustained hot operation
Turbo whistle, siren noise or squeal above 1500 rpm

OEM numbers

1919159 1945273 2002017 1920346 2422402 2422403 1897353 3783325

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Turbocharger

2154699 · HE400VG turbo, later MX Euro 6

Holset

Later HE400VG turbo group for DAF XF/CF MX-13 and selected MX-11 Euro 6 applications. Main search intent is OEM replacement matching plus diagnosis of underboost, VGT actuator errors and bearing wear.

Top symptoms

Loss of boost above 1200 rpm
Slow boost build after a gear change
Turbo hunting or surging between 1100 and 1500 rpm

OEM numbers

2154699 2154700 2301176 2301178 2301192 2343158 2348170 2348170RN

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Turbocharger

1959915 · HE500VG turbo, MX-13 Euro 6

Holset

HE500VG turbo group for high-output DAF MX-13 Euro 6 trucks. The reports repeatedly connect these OEM numbers with VGT actuator mismatch, soot-bound vanes, bearing wear and smoke complaints.

Top symptoms

Significant power loss above 1100 rpm
Dead pedal feel off the line with poor boost build
Whining, screaming or siren-type turbo noise under load

OEM numbers

1959915 1944459 1901518 1907280 2047386 2422406 3781185 3781187

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Turbocharger

2117463 · HE500VG turbo, MX-13 530 hp

Holset

High-output MX-13 530 hp HE500VG turbo group. Useful for exact OEM searches around 2117463, 2301181, 2353021 and 2403671.

Top symptoms

Strong turbo lag then a hard boost surge
High-pitched whistle around 1400-1700 rpm
Black smoke under full load with torque derate

OEM numbers

2117463 2301181 2353021 2403671

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Defect symptoms

Symptoms reported with P0049

Loss of power uphill or under trailer load

Limp mode after sustained hot operation

Turbo whistle, siren noise or squeal above 1500 rpm

Black smoke under acceleration from underboost

Blue smoke at idle from oil seal leakage

Fuel consumption noticeably above baseline

MX engine brake feels weak because back pressure is not controlled correctly

Loss of boost above 1200 rpm

Slow boost build after a gear change

Turbo hunting or surging between 1100 and 1500 rpm

Black smoke on hill start or kickdown

Blue smoke at idle or oily charge pipe

OEM numbers

OEM references to check

Use these links when the workshop note only contains an OE number instead of the exact part family.

Why it happens

Likely root causes behind P0049

Soot and carbon build-up on the VTG unison ring and vane tracks.
Vanes move when cold but bind after the turbine housing expands under high exhaust temperature.
Hot shutdowns and extended oil intervals carbonise oil in the bearing housing.
Actuator over-current or travel mismatch when the sector gear fights a stuck vane pack.
VTG actuator gearbox wear or failed calibration caused by a high-friction vane pack.
Vane unison ring binding from carbon and EGR soot carry-over.
Bearing oil coking after hot shutdowns or long oil-drain intervals.
Overspeed and thrust wear after charge-air leaks.

Fitment

Trucks and engines that report P0049

Model	Engine	Years
XF 106	MX-13 Euro 6	2013-2017
CF 85	MX-13 Euro 6	2013-2017
XF 106	MX-11 Euro 6	2013-2023
CF 430	MX-11 Euro 6	2013-2023
XF 106	MX-13 Euro 6 / EPA17	2017-2023
CF 85	MX-13 Euro 6	2017-2022
CF 480	MX-13 Euro 6	2017-2023
CF 530	MX-13 Euro 6	2017-2023
XF 106	MX-11 Euro 6	2017-2023
XF 106	MX-13 Euro 6	2013-2018
CF 85	MX-13 Euro 6	2013-2017
CF 480	MX-13 Euro 6	2013-2023
XF 106	MX-13 Euro 5/6	2014-2023

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