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Buying a 730D

BMW forum 7 Series car: E23, E32, E38, E65, E66, F01

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Buying a 730D

Postby blink » Sat, 08 Mar 2014 12:15:26 UTC

Im looking at a 730D tomorrow, the first BMW I haev looked at, is there any advice regarding what i should look out for on them?

I have done the VIN lookup but it doesnt really seem to tell me a great deal. the car has done 90,000 miles and is on an 06 plate. i dont mind doing repairs myself, but dont want a lemon!

Also, do these engines map well?

Thanks :)
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Re: Buying a 730D

Postby ezzer » Sun, 09 Mar 2014 17:52:40 UTC

Got ours at 80k mikes and now at 110k. 2006 730d.

Over this period had the following

Swirl flaps done.
Angel eye bulb bust - replaced with led.
Bonnet release jammed.
Gearbox oil change.
Bush replaced in front suspension.
Engine thermostats changed.

The last one was key as it turns out the car had been running at a max of 70 degrees. Now runs at 94-ish. Instructions are around for reading all the sensory values.

From reading up gearboxes seem to be the weak link.

Great cars!

Simon
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Re: Buying a 730D

Postby slim_boy_fat » Sun, 09 Mar 2014 18:00:09 UTC

Hi & welcome to the 'Land.

Private or trade sale? Got a link to the ad?

Just be sure a diesel is suited to your motoring needs - they don't like short runs/shopping trips where they don't get a chance to reach full operating temp [and perform regenerations of the DPF].

If you use the right website THIS ONE, it'll give you the FULL build spec when ordered new.
Never underestimate the power of thrawn.
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Re: Buying a 730D

Postby blink » Wed, 12 Mar 2014 00:31:56 UTC

Sorry for the late response, the one i went to see had been painted more times than the forth rail bridge, so I walked.

Its definitely a diesel im after, 60 miles a day commute on the motorway. the gearbox being the weak link sounds worrying. im expecting to do repairs myself, well maybe not transmission changes, but other stuff should be fine.

it will be trade sale whatever i do. thanks for the link too.

Anyway, i have decided i want a sport now rather than a SE, cant be without heated seats!

I currently am driving an astra turbo, which does mid 20s on the motorway, so i plan to keep that for weekends and shows, and using the bmw for some comfortable driving
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Re: Buying a 730D

Postby irish745 » Wed, 12 Mar 2014 15:23:44 UTC

Gearbox only gives trouble due to BMW been told IRS lifetime fluid in it and won't change it .but zf who make the box say fluid is only good for 100k .a full service kit costs bout 200 and contains the fluid which is specific zf lifeguard fluid a new sump with filter new bolts and a mechatronic sleeve takes bout an he to complete and guaranteed itl be smooth after I've done 2 cars before well worth it and my 760 has the same box and handles the 445 BHP and v12 torque no probs.it does require inpa or dis software to change the fluid though

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Re: Buying a 730D

Postby blink » Wed, 12 Mar 2014 21:45:29 UTC

thats not so bad, that sounds quite doable for us.

I was just worried because on some of the astra diesels, the gearbox is chocolate and the bearings collapse.

Does anyone map these diesel engines?
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Re: Buying a 730D

Postby irish745 » Wed, 12 Mar 2014 23:49:57 UTC

I've never heard any parts on these gearbox failing only the mechatronic unit but in all cases the cars never had the box serviced so draw ur own conclusion.also the only faults they give are an oil leak which is the plastic sump warping around the bolt holes due to the heat over time and the mechatronic sleeve on the side but that's all in the service kit .if u wanna,be overcautious u can change the bridge seal inside the box takes a bit longer only bout 20£ but does really improve the gearchange and stop any clunks some people do get on downshifts

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Re: Buying a 730D

Postby blink » Thu, 13 Mar 2014 00:14:09 UTC

thanks, i suppose i need to check the service history to see if any of this has been done
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Re: Buying a 730D

Postby snrbrtsn » Thu, 13 Mar 2014 00:47:50 UTC

The 3.0d engine takes a very good Mapping & gives linear torque, quite amazing how it pulls after mapping
Like Ice cream we all have our opinions and favourites, I previously used top gear tuning on my 530d, had a dpf removal (frowned upon now) & a performance map, only complaint was keeping traction in the rear tyres, note the torque & requirement for dpf removal


7 series E65
Model 730d 3.0 D 730d 3.0 D

Original 218 hp 231 hp

Tuned 250 hp 260 hp

Original 500 NM 520 NM

Tuned 565 NM 570 NM

DPF OFF Yes Yes

EGR OFF No No

O2 OFF No No

Ps

They were perfectly aligned when I wrote, even went to the bother of copying into exel tsk!
Gee! What I used manage to do all night, now takes me all night !!
Found what I couldn't find!

Sean.
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Re: Buying a 730D

Postby blink » Thu, 13 Mar 2014 23:26:43 UTC

thats about the same increase as i got from a map on mine. i dont think the dpf will be a problem with the driving im doing

its always fun having more power
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Re: Buying a 730D

Postby zigzagsky » Sat, 15 Mar 2014 23:13:32 UTC

blink wrote:Anyway, i have decided i want a sport now rather than a SE, cant be without heated seats!



I didn't know that the SE cannot be specified with heated seats? Although pre-facelift, my SE has comfort seats with heating front & rear!
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Re: Buying a 730D

Postby blink » Wed, 19 Mar 2014 22:20:06 UTC

it can be, its just that a lot seem not to have them, but all the sports have heated seats, in the front anyway
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Re: Buying a 730D

Postby bmwpete123 » Sun, 23 Mar 2014 19:37:05 UTC

I have a 2008 730d m sport and it doesn't have heated seats
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Re: Buying a 730D

Postby blink » Mon, 24 Mar 2014 22:00:35 UTC

well that throws a spanner in the works then!

either way, i want a sport with heated seats :D

i cant believe the flagship didnt come with them as standard
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Re: Buying a 730D

Postby Dobson » Tue, 25 Mar 2014 10:41:15 UTC

I've just taken the plunge and got myself a 730d SE from the AUC network. '07 with 53k for £11950. It's not got all the toys but does come with memory/heated seats, elec boot close, folding mirrors, 19" wheels & sports wheel so will do me fine. Most importantly I got them to add 2yrs AUC Warranty so have peace of mind for near future. Never owned a 7 series before but have had various 5's so hears hoping they turn out to be as good as I've read.
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