Hi everyone i was hoping someone can give me some advice i have a 2004 octavia mk2 1.9tdi, it felt light the clutch started slipping although the revs never increased when i put my foot down but it is very sluggish picking up speed, then the management warning light came on & stayed on with a warning message saying "workshop imissions" that comes on every so often, i wondered if it is something i can sort out myself or do i need a garage, i have put a code reader on it & the codes i am getting are as follows

18104

18058

17056

17057

17058

16683

10655

unfortunately none of these codes are in the code reader book i would be really grateful if anyone could advise me Thanks

Hi everyone i was hoping someone can give me some advice i have a 2004 octavia mk2 1.9tdi, it felt light the clutch started slipping although the revs never increased when i put my foot down but it is very sluggish picking up speed, then the management warning light came on & stayed on with a warning message saying "workshop imissions" that comes on every so often, i wondered if it is something i can sort out myself or do i need a garage, i have put a code reader on it & the codes i am getting are as follows

18104

18058

17056

17057

17058

16683

10655

unfortunately none of these codes are in the code reader book i would be really grateful if anyone could advise me Thanks

If the codes are relating to VAG-COM / VCDS then there are quite a few problems there.

This is what i could find

18104 Powertrain Data Bus: Missing Message from Instrument Cluster

Possible Symptoms

Malfunction Indicator Light (MIL) ON

Possible Causes

Fuse(s) faulty

Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285) faulty

Instrument Cluster (J285) faulty

Possible Solutions

Check Fuse(s)

Check Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285)

Check/Replace Instrument Cluster (J285)

 Check Measuring Value Blocks (MVB)

17056 Cylinder 2 Glow Plug Circuit (Q11): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17057 Cylinder 3 Glow Plug Circuit (Q12): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17058 Cylinder 4 Glow Plug Circuit (Q13): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

16683 Boost Pressure Regulation: Control Range Not Reached

Possible Symptoms

Reduced Power Output

Limp Mode

Possible Causes

Hoses/Pipes incorrect connected, disconnected or leaking

Charger Pressure Control defective

Turbocharger faulty

Diverter Valve faulty

Possible Solutions

Check Hoses/Pipes to/between Components

Check / Clean / Replace Charge Pressure Control

Check Turbocharger

Check Diverter Valve

Special Notes

When found in 2.0l TFSI:

Check Boost Pressure Control Valve (N249), for cracked rubber diaphragm. A new/optimized Valve is available under Part # 06H-145-710-D (or newer).

RoW vehicles see: TPI 2016331 for details.

NAR vehicles see: TSB 01-07-70 or 2013392 for details.

If the Turbocharger is faulty due to mechanical / internal problems or the exhaust system is restricted (typically the Catalyst) this fault may be the end result.

Edited 2 November, 201114 yr by Deneo

Thanks Deneo your help is most appreciated

If the codes are relating to VAG-COM / VCDS then there are quite a few problems there.

This is what i could find

18104 Powertrain Data Bus: Missing Message from Instrument Cluster

Possible Symptoms

Malfunction Indicator Light (MIL) ON

Possible Causes

Fuse(s) faulty

Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285) faulty

Instrument Cluster (J285) faulty

Possible Solutions

Check Fuse(s)

Check Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285)

Check/Replace Instrument Cluster (J285)

 Check Measuring Value Blocks (MVB)

17056 Cylinder 2 Glow Plug Circuit (Q11): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17057 Cylinder 3 Glow Plug Circuit (Q12): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17058 Cylinder 4 Glow Plug Circuit (Q13): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

16683 Boost Pressure Regulation: Control Range Not Reached

Possible Symptoms

Reduced Power Output

Limp Mode

Possible Causes

Hoses/Pipes incorrect connected, disconnected or leaking

Charger Pressure Control defective

Turbocharger faulty

Diverter Valve faulty

Possible Solutions

Check Hoses/Pipes to/between Components

Check / Clean / Replace Charge Pressure Control

Check Turbocharger

Check Diverter Valve

Special Notes

When found in 2.0l TFSI:

Check Boost Pressure Control Valve (N249), for cracked rubber diaphragm. A new/optimized Valve is available under Part # 06H-145-710-D (or newer).

RoW vehicles see: TPI 2016331 for details.

NAR vehicles see: TSB 01-07-70 or 2013392 for details.

If the Turbocharger is faulty due to mechanical / internal problems or the exhaust system is restricted (typically the Catalyst) this fault may be the end result.

Edited 2 November, 201114 yr by g4ran

Hi Deneo someone said it could be the ERG so i stripped mine down & it was caked to hell so i cleaned it all up but it didn't seem to make any difference however i did notice that when i put my foot down the rubber pipe that comes off the ERG opposite side of the manifold sucks in, i just wondered if you had any ideas what could be causing it any advice would be gratefully received thanks

Thanks Deneo your help is most appreciated

If the codes are relating to VAG-COM / VCDS then there are quite a few problems there.

This is what i could find

18104 Powertrain Data Bus: Missing Message from Instrument Cluster

Possible Symptoms

Malfunction Indicator Light (MIL) ON

Possible Causes

Fuse(s) faulty

Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285) faulty

Instrument Cluster (J285) faulty

Possible Solutions

Check Fuse(s)

Check Databus Wiring and/or Connector(s) from/to Instrument Cluster (J285)

Check/Replace Instrument Cluster (J285)

 Check Measuring Value Blocks (MVB)

17056 Cylinder 2 Glow Plug Circuit (Q11): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17057 Cylinder 3 Glow Plug Circuit (Q12): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

17058 Cylinder 4 Glow Plug Circuit (Q13): Electrical Fault

Possible Symptoms

No Pre-Glow Period

Poor Cold Starting

Possible Causes

Glow Plug Wiring faulty

Glow Plug faulty

Possible Solutions

Check Glow Plug Wiring

Check Glow Plug

16683 Boost Pressure Regulation: Control Range Not Reached

Possible Symptoms

Reduced Power Output

Limp Mode

Possible Causes

Hoses/Pipes incorrect connected, disconnected or leaking

Charger Pressure Control defective

Turbocharger faulty

Diverter Valve faulty

Possible Solutions

Check Hoses/Pipes to/between Components

Check / Clean / Replace Charge Pressure Control

Check Turbocharger

Check Diverter Valve

Special Notes

When found in 2.0l TFSI:

Check Boost Pressure Control Valve (N249), for cracked rubber diaphragm. A new/optimized Valve is available under Part # 06H-145-710-D (or newer).

RoW vehicles see: TPI 2016331 for details.

NAR vehicles see: TSB 01-07-70 or 2013392 for details.

If the Turbocharger is faulty due to mechanical / internal problems or the exhaust system is restricted (typically the Catalyst) this fault may be the end result.

Hi guys i'm back again, i've had the car at skoda on a diag machine & i'm told that the glow plugs need renewing & also the glow plug control unit J179 needs replacing, i've found the glow plugs but can anyone tell me where i can find the glow plug control unit J179, the loom from the glow plugs run into a cable tidy tubing down towards the nearside underneath the front of the car, i would be greatful for any help thanks.