Ok merci, pourtant moi au demontage j'en avait un

160 euros, tu l'as laissé passer parce que tu voulais un 752 pour coller à l'origine ?Thomas Olivaux a écrit :Je vais matter ça merci. J'en ai vu un (758) partir sur eBay à 160 euros l'autre jour (les deux morceaux et le cable entre deux).
Edit : j'ai trouvé ton site http://www.koenigs-klassik-radios.de. Ils sont vraiment chers. Ils ont le même que moi (un poil plus récent à priori, un 830 et pas un 755) à 490 euros et effectivement un 758 à 950... erf.
++Most of the issues you describe are typical of E23 and 745i. Easy fixes and you'll feel proud you rebuilt it all yourself.
www.beckerautosound.com/ for the radio. Sound quality is meh with it, mostly due to the old speakers (no tweeters) and low power output of 7 watts a channel... but since you still have one (like I do) it's worth keeping in an original car. Just get a good set of speakers and have the radio serviced. ALSO they can modify the cassette section to be a line out to use to a CD player or MP2 player. It's a modified version of the 612 found in the '81-85 Mercedes W126 in the US, so a good LCD display is easy to find. That BMW Becker also has short wave and I think a weather band.
I'd treat this car as a very prime example of an original car that hasn't been driven much. Most everything is going to need to be serviced/rebuilt/replaced that's a wear item unless you have records of this.
1. OIL CHANGE first! Use some quality oil, if no leaks... do synthetic. Use good quality filters. I'd do Mobil 1, AMSoil, or Redline. Not a fan of Royal Purple. 10/40, 15/50, etc. Something in that area. Cooler climate like yours may be fine with a 10/40 year round. It's hot enough in Texas so mine get 15/50 M1 year round. Inspect the oil cooler hoses, they like to seep over time.
2. Next, I agree with Steve... pull the valve cover. Those bolts love to back out, BMW has revised ones that are cheap (on a car of this caliber, I'd put cost aside for just about everything). Figure about $15 for the new cam bolts and four crush washers. 11 42 1 738 621 is the PN for the bolts (you need two) and 11 42 1 252 343 is the PN for the washers (you need four). Do this too while it's apart - http://paulaxford.com/bmw730i/cam_spray_bar.htm also pick up a new valve cover gasket. Valve lash is 0.30mm or 0.012", cold motor.
3. Belts and Hoses (there's lots!). You dont want one coming off at 70mph. I use Conti belts (always keep a spare set in the car, cheap enough) and CRP or OEM hoses. There's a few hoses behind the firewall. Also see number 6 for different pulleys.
4. Ignition system (cap, rotor, wires, plugs). Wear items. Bosch for cap/rotor, I'd do Kingsborne wires, W8DC are the Bosch plugs or you want NGK BP5ES ONLY. NO resistor, NO platinum. Gap should be 0.7mm from memory or around 0.0275"
5. Coolant flush, trans service, rear diff service, SLS service. I use Xerex G-05 in my foreign cars. NO green crap, consider a new thermostat. I use cheap ATF in the trans and change it often. Look up the issues on the 4HP22, it will burn up the forward ("A") clutch pack if revved up in park/neutral after going into drive... if not been serviced in a long time, reply back and we'll find you the info on a good, slow flush... also get a small magnet in the pan to collect metal filings. Good 75/90 or 80/90 gear oil with LSD additive in the diff. SLS you need some Pentosin fluid, not sure if it has a filter or not.
6. HVAC tune up, keep the system R12 if low/uncharged. It simply cools better and for the few extra dollars it's totally worth it. Consider the severe duty/desert water pump pulley for better cooling of the AC (and the car in summer). Think about an E32 crank pulley for better AC cooling at low speeds.
7. Fuel filter, rebuilt/cleaned injectors, fuel lines (again tons of lines!). Also verify both pumps work (pumps wear with age). Injectors plug with age and the o-rings get brittle... thus making vac leaks. $120 well spent to have those redone. Almost all fuel lines are 8mm except for the one from the lift pump to the inline which is 12mm. I prefer Goodyear high pressure hose (has blue liner) as it takes higher pressure better.
When in with injectors, replace cold start valve and o-ring plus fuel line to rail. Test/verify function of idle slide valve.
IMPORTANT - there are three hoses that are almost always bad in this area. Two "U" shaped ones that connect the venturi to the throttle body to the flex coupling from the intercooler and one down by the idle slide valve. These are always hard, brittle, and creating vacuum leaks.
8. Inspect radiator for brittle plastic on end tanks. A new one is around $275 and worth every penny. Also check the water pump, they're less than $50.
9. Condition leather, Leatherique.com seems to be best. Figure about $60... since the interior is about immaculate, I'd HIGHLY recommend window tint to keep the UV out... this is what kills or preserves interiors.
10. BRAKES/hydraulic system! Check pads for even wear. Install new lines, just go with stainless as you'll never have to do them again. Flush out with some quality DOT 4.
There are four low pressure lines for the steering/hydroboost brake system. These ALWAYS seep with age. I have a bunch of extra so just email me if you want some. This will also give you a great time to flush the system out. The high pressure like to seep too over time, the to big ones just buy new (about a wash to have them rebuilt) and the one to the booster I would have rebuilt (and I did).
11. Along with the aformentioned three rubber hoses by the throttle body, inspect and replace as needed the rubber couplings from the turbocharger to the intercooler. Usually the flex one needs to be replaced. I recommend removing and cleaning the intercooler. The valve cover breather probably needs to be replaced, air flow meter boot to the air intake pipe, etc
Skip rubber vacuum lines under the hood, try to locate matte black silicone. Hold up better over time to the heat.
12. Boost is around 6psi and should pull 17-19" of vacuum at hot idle. Any less is due to vac leaks... most are old rubber causing these issues or old gaskets.
13. Go over the suspension. It's probably not worn due to low miles, but could easily sag due to age.
14. Replace all of the fuses, these can cause hit/miss issues with the electrical system. I'd also replace all of the light bulbs too, they get dim with age even if they work.
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