Polo tdi loosing power

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Phila
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Posts: 2
Registered for: 3 years 1 month

Polo tdi loosing power

Post by Phila »

Hi guys, I’m experiencing a challenge with my 2011 polo tdi. The car drives well for few mins , then the glow plugs light comes on. When it comes, the car feels like it has e-brakes applied. It doesn’t drive well, and especially steep hill areas.
Another challenge I’m facing is that the speed never exceeds 120km/hr with or without the glow light on. What might be the cause
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Jetta2
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Posts: 14929
Registered for: 17 years 3 months
Car Make: VW, VW, Aprilia
Car Model: Mk3 Golf VR6, Mk4 Caddy, RSV4
Membership No: 1087
Location: Menlo Park, Pretoria

Re: Polo tdi loosing power

Post by Jetta2 »

Have the car scanned for erroes then take it from there.

TDI issues related to going into limp mode like you describe, are normally caused by either over boost or underboost issues.
Can be a boost pipe that has a leak, crack, tear or partially off, or a vacuum leak in one of the pipes, or the variable veins on the turbo being stuck or the vein actuator on the turbo, etc.

But have it scanned for errors and then work from there.
Ryan Demoser

1996 Mk3 Golf VR6
2017 Caddy Maxi Crew Bus 2.0 TDI
2013 Aprilia RSV4 track toy
2021 Aprilia RS660 road bike
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