V50 Engine 2.0D : - Cold weather starting issue

hoks · Feb 15th, 2018, 22:02

Greetings forum!

Maybe some of you good folks can help me a bit with good advice...

I have 2007 V50 2.0d, and in cold weather -5°C and colder the car will start a bit weird, cranking time may not be that longer, but engine runs rough for first 10s or so and rews jump a bit, like stalling and then gets going again... When warm or in warmer ambient temps it starts ok..
Sometimes there is a small air bubble in the transparent fuel hose but i dont think thats the problem. Also the intake tube with valves also seems ok, they dont stick or anything. Only thing the dealer said that glow plugs should be changed, so i assume no fault codes were registered, and after fitting new NGK glow plugs there was no change... Dont really want to take it to diesel specialist for injector test before exploring some other options...

I filmed a video with the cold start- (https://youtu.be/KPoDwUIq3ZY)

I will be happy to read your thoughts and suggestions and thank you in advance!

Kind regards, a v50 owner

Kake41 · Feb 16th, 2018, 12:12

It's quite normal for diesels to make that rattling sound briefly after cold start at low temps.
I'd recommend a block heater (Calix/Defa) to make the cold starts more comfortable for the car. Or you just maybe want to wait a minute or so to give time for the car idle to settle.

In Finland the block heaters are widely used and in winter the temperatures can go below -30 Celcius. We still drive with diesels here and use arctic quality of diesel which withstands low temperatures.

Here's an example of WV diesel cold start at -31C:
https://www.youtube.com/watch?v=WBf42egeH0g
It starts just fine but idles quite rough at initial seconds.

kEV1009 · Dec 16th, 2019, 21:14

Hi Hoks, cannot see your video.
So i can just guess I have the same issue. Well maybe not. For me cold also mean standing for a while. What i noticed is that standing 2 hour at minus 10 is not a problem (no bubble got time to get in fuel system) but standing two days and then it's shaking like shakira's butt when starting ! I conclude that my problem is from air. Something like fuel is getting back in tank and air get inside fuel system, or something right before fuel filter not sure. Did you try to monitor that ? How does is start after 3 start in a raw ? Still get bubble and hard start ? Standing 1 hour, 5 hours, 2 days ?

paulmansfield · Dec 21st, 2019, 12:46

Could be glow plugs

Feb 15th, 2018, 22:02	#1
hoks Junior Member Last Online: Oct 14th, 2019 13:54 Join Date: Feb 2018 Location: Riga	Cold weather starting issue Greetings forum! Maybe some of you good folks can help me a bit with good advice... I have 2007 V50 2.0d, and in cold weather -5°C and colder the car will start a bit weird, cranking time may not be that longer, but engine runs rough for first 10s or so and rews jump a bit, like stalling and then gets going again... When warm or in warmer ambient temps it starts ok.. Sometimes there is a small air bubble in the transparent fuel hose but i dont think thats the problem. Also the intake tube with valves also seems ok, they dont stick or anything. Only thing the dealer said that glow plugs should be changed, so i assume no fault codes were registered, and after fitting new NGK glow plugs there was no change... Dont really want to take it to diesel specialist for injector test before exploring some other options... I filmed a video with the cold start- (https://youtu.be/KPoDwUIq3ZY) I will be happy to read your thoughts and suggestions and thank you in advance! Kind regards, a v50 owner

Feb 16th, 2018, 12:12	#2
Kake41 New Member Last Online: Feb 16th, 2018 12:13 Join Date: Feb 2015 Location: Finland, South Karelia	It's quite normal for diesels to make that rattling sound briefly after cold start at low temps. I'd recommend a block heater (Calix/Defa) to make the cold starts more comfortable for the car. Or you just maybe want to wait a minute or so to give time for the car idle to settle. In Finland the block heaters are widely used and in winter the temperatures can go below -30 Celcius. We still drive with diesels here and use arctic quality of diesel which withstands low temperatures. Here's an example of WV diesel cold start at -31C: https://www.youtube.com/watch?v=WBf42egeH0g It starts just fine but idles quite rough at initial seconds.

Dec 16th, 2019, 21:14	#3
kEV1009 New Member Last Online: Apr 30th, 2020 16:26 Join Date: Dec 2019 Location: Riga	Hi Hoks, cannot see your video. So i can just guess I have the same issue. Well maybe not. For me cold also mean standing for a while. What i noticed is that standing 2 hour at minus 10 is not a problem (no bubble got time to get in fuel system) but standing two days and then it's shaking like shakira's butt when starting ! I conclude that my problem is from air. Something like fuel is getting back in tank and air get inside fuel system, or something right before fuel filter not sure. Did you try to monitor that ? How does is start after 3 start in a raw ? Still get bubble and hard start ? Standing 1 hour, 5 hours, 2 days ?

Dec 21st, 2019, 12:46	#4
paulmansfield Junior Member Last Online: Feb 2nd, 2024 19:55 Join Date: Sep 2019 Location: Nottingham	Could be glow plugs

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