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S40 B4164S leaking coolant

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

bncpwn
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Year and Model: 1999 S40
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bncpwn

S40 B4164S leaking coolant

Post by bncpwn » Sun Dec 23, 2018 12:03 pm

Hey there.
Well I've got my first huge issue with my S40 B4164S..
Basiclly it was leaking cooland so I took it to a car mechanic. He said that probably the water pump leaking so he changed it with the timing belt.. But it is still leaking, and I'm not so experienced with cars. He was saying that there's some place where the water pump mounts on, one of the bolts were broken so he had to drill a bigger base on it, and somehow mounted that water pump, but it is still leaking.. He said that he thinks there's some hairline break on the block itself somewhere where the water pump mounts, but he can't find it. Sounds so suspicious, but it costed me a lot to even get that pump with timing belt changed..
Is it possible to the engine block break there, and leak the water, or he just fcked up something with that water pump mounting?
Its leaking only when the car runs, and leaks a lot, its just cooland drops every second twice, or similar speed.
I was thinking about buying a complete engine, and just get changed with other mechanic, but I dont really see here B4164S's for sell, or there's not so much.. Was thinking about getting a B4204S, saw a few for sale, would it be an impossible mission? If I get the transmission, ECU, wiring harness and engine, would it possible to fit, or would need a lot welding etc? Not saying its a must, but if it would be possible without a huge rebuild.. :) So yeah, a lot of questions. :D If nothing happens I might go abroad and buy an engine there, probably in Germany I could find easily B4164S's. :D
Cheers.



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RickHaleParker
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Re: S40 B4164S leaking coolant

Post by RickHaleParker » Mon Dec 24, 2018 3:41 am

Take the guess work out. Power wash the engine, put some Trace Dye in the coolant then use a UltraViolet lamp to trace the leak back to the source.


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
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1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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alschnertz
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Re: S40 B4164S leaking coolant

Post by alschnertz » Tue Dec 25, 2018 5:05 am

I would do more investigative work to determine where the leak actually is.


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

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