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 2nd hand Pre-owned Mercedes/Mini advice, 1st time pre-own purchase

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19 Degree South
post Aug 10 2019, 02:48 AM

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So Rich! Poor fag me only can afford myvi!
NoobboyZzZ
post Aug 10 2019, 02:56 AM

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Get benz you never regret
Mini suspension jz too fking harsh for lady drive
jameslow
post Aug 10 2019, 05:16 AM

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QUOTE(infiniti123 @ Aug 9 2019, 09:12 PM)
Thanks for the info. I’ve put down a reservation for a CKD G30 3 series and I’ll be passing my F30 to my gf
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G30 is 5 series, G20 is 3 series

If you that rich to pass the F30 to your GF (not your wife), and yourself get a new 3 series (or G30), then forget about the pre-owned, it's not your standard buying used.

This post has been edited by jameslow: Aug 10 2019, 05:17 AM
wkc5657
post Aug 11 2019, 05:15 PM

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QUOTE(HippyTony @ Aug 9 2019, 08:41 PM)
Thanks for your insight info.

Just for discussion and for my acknowledge. What’s your definition of “very soon”?  “If got problem, will arise very soon after fluid change”.
Btw, AB used to recommend 60K to change transmission fluid, so I don’t think it was the case of gunk was the cause. I think BMW own house brand transmission fluid was not compatible. I have also experience their EO house brand to cause my engine running hot! Their SC guy admitted to me that their EO house brand formula was changed.
Thanks again.
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When was your last change?

If really got problem, some the very 1st day already can feel something off already.

I don't know what those AB fellors procure for the engine oil, the only thing i know was that BMW HQ decided to preferred engine oil from castrol to shell some years back then and was renewed again last year. So, i hazard guess likely their own house brand oil also from shell.

https://www.shell.com/business-customers/lu...l-supplier.html

Can you describe your last experience regarding "engine running hot"? This statement is quite vague.
jepakazoid_82
post Aug 11 2019, 08:18 PM

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Get new mazda 3 TS.
HippyTony
post Aug 12 2019, 07:17 PM

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QUOTE(wkc5657 @ Aug 11 2019, 05:15 PM)
When was your last change?

If really got problem, some the very 1st day already can feel something off already.

I don't know what those AB fellors procure for the engine oil, the only thing i know was that BMW HQ decided to preferred engine oil from castrol to shell some years back then and was renewed again last year. So, i hazard guess likely their own house brand oil also from shell.

https://www.shell.com/business-customers/lu...l-supplier.html

Can you describe your last experience regarding "engine running hot"? This statement is quite vague.
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From my source, those that had problem with their transmission after fluid changed at AB was the next day the gears slipped. I changed my auto transmission fluid about 6 months ago, so my Mini should be ok. My mechanic told me BMW transmission fluid probably is inferior or contaminated.

I gather my Mini, the engine was running hot was the service cycle was shortened could barely reached 7 months out of the blue also started to consume EO. Engine noise was louder. Did another EO change, also the same result, the SA initially told me my engine was not right. I asked him to honestly tell me whether they have changed the oil formula, only then he admitted it was a new oil formula but of course he said only my car had this issue. From my experience, my ex cars sometimes consumed EO when I changed to a different EO brand and usually the next oil changed it will be back to normal. The Mini is ok now and I no longer go to AB. Yes the BMW house brand EO is from Shell HK.

My guess with BMW/MINI their new 5/4 years respectively free service, they have to save $ from something. Their left over stock of the old EO was offered to my Mini guy at 70-80% discount. He told me he dare not touch their stuff unless his customers insist on them.
wkc5657
post Aug 13 2019, 11:51 AM

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QUOTE(HippyTony @ Aug 12 2019, 07:17 PM)
From my source, those that had problem with their transmission after fluid changed at AB was the next day the gears slipped. I changed my auto transmission fluid about 6 months ago, so my Mini should be ok. My mechanic told me BMW transmission fluid probably is inferior or contaminated. 

I gather my Mini, the engine was running hot was the service cycle was shortened could barely reached 7 months out of the blue also started to consume EO. Engine noise was louder. Did another EO change, also the same result, the SA initially told me my engine was not right. I asked him to honestly tell me whether they have changed the oil formula, only then he admitted it was a new oil formula but of course he said only my car had this issue. From my experience,  my ex cars sometimes consumed EO when I changed to a different EO brand and usually the next oil changed it will be back to normal. The Mini is ok now and I no longer go to AB. Yes the BMW house brand EO is from Shell HK.

My guess with BMW/MINI their new 5/4 years respectively free service, they have to save $ from something. Their left over stock of the old EO was offered to my Mini guy at 70-80% discount. He told me he dare not touch their stuff unless his customers insist on them.
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Your transmission should pretty much be fine after half a year. As you also mentioned yourself, those with problem surfaced the next day.

Kind of odd that engine oil could have such a drastic difference. My guess would be they could have used the wrong viscosity. Because, (my opinion), engine oils are built rather tough, even poured in wrong specification, the damage would occur on the longer run instead of surfacing so quickly. But maybe you could be right. Another possibility is that the engine oil has been put aside in storage for too long or wasn't stored properly, especially for those that procure in large drum instead of individual bottles. Those in drum have a higher risk of exposure to elements unless very quickly consumed.

 

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