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Car Forum / BMW Cars / November 20061989 635 csi
Someone here in Dubai is selling one that's run 110,000 km and is quoting $5,000. Being used daily, he says, and looks solid enough without any apparent problem (did a test run yesterday). Two questions - (a) is the price fair or thereabouts, and (b) are spares for that car still available? Thanks, Ramapriya > Someone here in Dubai is selling one that's run 110,000 km and is > quoting $5,000. Being used daily, he says, and looks solid enough > without any apparent problem (did a test run yesterday). > > Two questions - (a) is the price fair or thereabouts, Probably, but this is an old car. OTOH body work etc. should be very good. 110Mm sounds a little low for a car this age. Does it need leaded petrol? > and (b) are spares for that car still available? Yes, but not sure about in Dubai > Thanks, > > Ramapriya Assuming its provenance is OK you could ship it to Europe and sell it as a classic when you are finished with it. > Does it need leaded petrol? Does *any* BMW car?  Signature*I have a degree in liberal arts -- do you want fries with that Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >> Does it need leaded petrol? > > Does *any* BMW car? I once had a 1983 735i (e23), which did and worse could not be converted to unleaded. Whilst the engine was changed to unleaded when the 7 series went to e32, the (e24) 6 series may well have continued with the same one until the 6 series was replaced by the 8 series in 1989 >>> Does it need leaded petrol? >> >> Does *any* BMW car? > >I once had a 1983 735i (e23), which did and worse could not be converted to >unleaded. Strange - My 76 E3 3.3LiA had hardened valve seats and the only real problem was the compression ratio as the engines in EU and US were almost identical except for EGR and compression. >Whilst the engine was changed to unleaded when the 7 series went to e32, the >(e24) 6 series may well have continued with the same one until the 6 series >was replaced by the 8 series in 1989 Sir Hugh of Bognor The difference between men and boys is the price of their toys. Intelligence is not knowing the answer but knowing where and how to find it! Hugh Gundersen hsg@h-gee.co.uk Bognor Regis, W.Sussex, England, UK > I once had a 1983 735i (e23), which did and worse could not be converted to > unleaded. My '86 635CSi was the same engine and ran fine. Engines made after mid-87 were officially OK. Those made before are OK if they've been run for 30k miles on leaded and built up a tolerance (any metalurgists around?). In practice all BMW engines have hardened valve seats so I'd not worry. SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price > My '86 635CSi was the same engine and ran fine. > Engines made after mid-87 were officially OK. Those made before are OK > if they've been run for 30k miles on leaded and built up a tolerance > (any metalurgists around?). In practice all BMW engines have hardened > valve seats so I'd not worry. I can't think of any ally head engine that isn't in practice ok on unleaded - unless really caned for long periods, which of course with our speed limits is difficult. Many makers *said* their older models were unsuitable either to be sure to be sure or to try and push new sales. Signature*Atheism is a non-prophet organization. Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >> I once had a 1983 735i (e23), which did and worse could not be converted to >> unleaded. [quoted text clipped - 5 lines] >(any metalurgists around?). In practice all BMW engines have hardened >valve seats so I'd not worry. I don't know[1] about the other german cars (vw, audi, porsche) but I've always read all mercedes and bmw's since wwii have had hardeneded valve seats; do not require leaded fuel and may suffer only from higher octane requirements than is found sometimes. [1] but I'd like to. SignatureNeed Mercedes parts? http://parts.mbz.org Richard Sexton | Mercedes stuff: http://mbz.org 1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net 633CSi 250SE/C 300SD | http://aquaria.net http://killi.net > I don't know[1] about the other german cars (vw, audi, porsche) but I've > always read all mercedes and bmw's since wwii have had hardeneded valve > seats; do not require leaded fuel and may suffer only from higher octane > requirements than is found sometimes. Yup - that is effectively the case. I don't know of any car with an ally head that can't stand unleaded. You just wouldn't bother making valve seat inserts out of poor quality steel. Signature*If you think nobody cares about you, try missing a couple of payments * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. > >> Does it need leaded petrol? > > > > Does *any* BMW car? > > I once had a 1983 735i (e23), which did and worse could not be converted to > unleaded. Somebody snowed you, but good. *Every* modern BMW engine (since 1962, anyway) is able to run on unleaded fuel. Unleaded fuel is really only a problem in two ways. It may not have the same resistance to preignition as leaded fuel, but other additives or adjustment of ignition settings can take care of that. The other way is valve seat recession in cast iron heads without hardened valve seats. Since there are no BMW engines with cast iron heads (and *all* BMW alloy heads have hardened valve seats), this is a non-issue. I'm still amazed that so many people in the UK persist in believing old wives' tales about unleaded fuel damages to engines that we've been running here in the US on unleaded since the early '70s. That particular 3.5 in the 735i is essentially identical to the one in my '88 535is - which has never run on anything *but* unleaded fuel. -- C.R. Krieger (Been there; done that) >> >> Does it need leaded petrol? >> > [quoted text clipped - 19 lines] > '88 535is - which has never run on anything *but* unleaded fuel. > -- And prior to the general U.S. introduction of unleaded around 1974, some of us remember running Amoco Premium in the late 60's & early 70's. It was proudly advertised as the only "white" (unleaded) gas available - and it was 95 (R+M)/2 octane until the late 70's. Tom K. > Someone here in Dubai is selling one that's run 110,000 km and is > quoting $5,000. Being used daily, he says, and looks solid enough > without any apparent problem (did a test run yesterday). > > Two questions - (a) is the price fair or thereabouts, and (b) are > spares for that car still available? That's 60k miles, barely worn in :-) Wonderful cars, see my site's buyer's guide. Parts are not a problem. If it's a genuine Dubai car it will have a factory installed tropical radiator. SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price |
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