Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You

Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

Thread Tools
Old January 27th, 2012, 16:00   #1
Join Date: Jan 2012
Location: wilts
Default MK4 golf tdi Cold starting problems


I was wondering if any of you guys could possibly help me out, iv done some searches but havent found much luck with things to try !

Iv got a MK4 golf 1.9 TDI PD 115 engine but keep have issues starting the car when its cold. If i turn the key for a second to turn it over then turn it off and then back on again it will start within 4-5 seconds, whereas if i turn the key from start it keep turning over and wont start at all.

I have plugged a code reader into the car and it came up with error code - 17978 and 16705

I have given the car a full service - glow plugs, fuel filter, oil, air filter, oil filter, as i read in places it could be the plugs or fuel filter still no luck.

I believe one of the fault codes is to do with the cam shaft position sensor located next to the cam belt, which i have changed, it got better for a few days then went back to normal.

Since then i have ran out of idea ! if anyone has any advice i would be greatly appreciative.

doland is offline   Reply With Quote
Old January 27th, 2012, 17:05   #2
Veteran Member
Join Date: Dec 2007
Location: Olympia, WA
TDI(s): '04 Golf

Try searching for "hard start" "cold start" and "glowplug" or try searching using the error code numbers.

There's a lot written about this and it probably is related to your glowplug harness or the connection of the harness to the glowplugs.
2004 Golf GL PD TDI
Malone Tuned, SBC Stage II Daily, Nicktane Cat 2 fuel filter, Dieselgeek bypass oil filter, Whitedog intake hose fix, A4 Defender skid plate, GLI Recaros, Check Temp III, Ventectomy, LED trunk lighting mod, Volx glass headlight lenses, VR6 front and wagon rear springs. Koni FSDs all around. FrostHeater with bumper mounted plug-in mod (details here).
OlyTDI is online now   Reply With Quote
Old January 27th, 2012, 17:19   #3
Veteran Member
Seatman's Avatar
Join Date: Apr 2010
Location: Scotland
Fuel Economy: No idea

Maybe the ignition switch but I'm not sure, 17978

Seatman is offline   Reply With Quote
Old January 28th, 2012, 00:49   #4
Join Date: Jan 2012
Location: wilts

thanks guys il give it a look
doland is offline   Reply With Quote
Old January 28th, 2012, 06:47   #5
Veteran Member
jettawreck's Avatar
Join Date: Aug 2004
Location: Northern Minnesota-55744
Fuel Economy: 52+ average lifetime '01

You can also check out the coolant temp sensor. If its faulty it won't cycle the GPs for as long as it should. Common failure on the ALH/VE MKIV's, not sure about your model. The GP indicator lamp isn't neccessarily an indicator of how long they are cycling on.

2001 Jetta TDI GLS Silver-current driver (salvage)permanently vented-Panzer Plate-Sprint 520s-ScanGauge-CheckTemp III-ZeroStart heater-CAT 2 filter
2003 Jetta GLS Black w/leather (New Project Car) fixer-upper w/broken TB
2004 Cadillac SLS (wife's)
1999 GMC Suburban (It's MN-you need one)
197? Shibura 2cyl diesel 4WD tractor-loader/brushhog (very handy unit)
196? International TD340 Dozer-w/Drott 4-in-1 bucket/back ripper attachment
jettawreck is offline   Reply With Quote
Old January 28th, 2012, 07:27   #6
Join Date: Apr 2011
Location: Texas
Fuel Economy: 49 mpg hwy

I have an 01 that would not start - "shifting into reverse kills engine".
This is what I ended up doing. Get a volt meter, with the key on test the voltage at each fuse and wright it down. I found several with less than 12 volts. Got a wiring diagram for circuits and see what they have in common. Mine was the ignition switch. Replaced the electrical part of the ignition switch and it has been running fine since. Problem was where the mechanical and electrical part of the ignition switch go togather was worn and I believe the was not making full contact, because it was not turning completely, and not getting full power so it would not start.
LLJ85 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2011 VW Golf TDI - problems starting/not starting airstreamer TDI 101 3 January 11th, 2012 16:09
TDi 150 Cold Starting Problems Mieke VW MKIV-A4 TDIs (VE and PD) 2 September 20th, 2011 14:08
2004 VW Jetta TDI Cold Weather Starting Problems Gretchw20 Other VW Group TD(I)s 4 December 17th, 2009 18:27
2004 VW Jetta TDI Cold Weather Starting Problems Gretchw20 VW MKIV-A4 TDIs (VE and PD) 18 March 18th, 2009 14:26
2004 VW Jetta TDI Cold Weather Starting Problems (hoping for more responses) Gretchw20 VW MKIV-A4 TDIs (VE and PD) 0 April 4th, 2008 14:51

All times are GMT -7. The time now is 21:40.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2017, All Rights Reserved
Page generated in 0.08911 seconds with 10 queries
[Output: 74.67 Kb. compressed to 65.61 Kb. by saving 9.06 Kb. (12.14%)]