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The BMW Range
3 Series
E46
Expansion tank issue
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<blockquote data-quote="alxy" data-source="post: 542699" data-attributes="member: 2947"><p>Long story actually. Tank cracked some time back and I did not have time to drive to regular mech Ah Meng at MSpeed. So I took car to nearest decent looking workshop. They appear to struggle a bit when fixing back the tank. Though they did do the whole bleeding process. After that, I found like the tank was slanting a bit and radiator not quite straightened up. Probably because of that, new tank also leaked quite a bit (can clearly see underside of car dripping water). So took it to MSpeed and got that sorted out. No obvious leak now, but have to fill it up every 3-4 days or so (about 1 litre each time). Ah Meng pressure tested it and found no apparent problems. So it's probably a slow leak somewhere. Latest thing I did was change the tank cap few days back. Thought that might help. But looks like still no good. Hoses not changed, so that's what I suspect next. Might be some connector rusted or hairline cracked. Worst case scenario is radiator cracked <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></p><p></p><p>Mine is 2001 325</p></blockquote><p></p>
[QUOTE="alxy, post: 542699, member: 2947"] Long story actually. Tank cracked some time back and I did not have time to drive to regular mech Ah Meng at MSpeed. So I took car to nearest decent looking workshop. They appear to struggle a bit when fixing back the tank. Though they did do the whole bleeding process. After that, I found like the tank was slanting a bit and radiator not quite straightened up. Probably because of that, new tank also leaked quite a bit (can clearly see underside of car dripping water). So took it to MSpeed and got that sorted out. No obvious leak now, but have to fill it up every 3-4 days or so (about 1 litre each time). Ah Meng pressure tested it and found no apparent problems. So it's probably a slow leak somewhere. Latest thing I did was change the tank cap few days back. Thought that might help. But looks like still no good. Hoses not changed, so that's what I suspect next. Might be some connector rusted or hairline cracked. Worst case scenario is radiator cracked :eek: Mine is 2001 325 [/QUOTE]
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Expansion tank issue
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