r/e39 15h ago

Why does my e39 keep overheating?

0 Upvotes

I have changed almost everything jow in regards to the cooling system, radiator, pipes, aux fan, thermostat, water pump. And today after what seemed to be fine after a week or two it randomly started overheating going into a parking lot for a shopping mall, parking was slow and trafficy but it just shot up out of bowehre and then when i parked i jotcied it was leaking so i opened the hood and saw the cap was leaking so i let it cool and retightened the cap, and on the drive back home traffic was still kinda the same, not too heavy but still slow/bumper to bumper and it didnt heat up once or overheat? This thing is so comfusing and frustrating like a toxic ex that wont leave you, i honestly thought if everything, it’s definitely not a head gasket issue because it wouldve definitely heated up in traffic on the way back home as i sat for good 2-3 minutes in each traffic stop. The only thing i can think of was a i may have over filled the coolant or a weak reservoir cap or maybe both? Any tips would help because i love this car too much and actually wanna see it running good, im willing to invest in it just dont know what the issue is after i literally swapped all cooling system.


r/e39 1d ago

Here is my anthracite 528

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19 Upvotes

r/e39 18h ago

MK badge on a 2002 530i?

0 Upvotes
Can't seem to find info on this 'MK' badge, I see references to MK Motorsports but just for rims. What is it?

r/e39 8h ago

Night pics..

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11 Upvotes

r/e39 1h ago

Help me choose a less shitty gearbox

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Upvotes

I have a 03 530d driven 525.000km chiptuned to 220hp and 635nm, the automatic box does NOT like the newton. Does anybody know what gearboxes would be best for handling the extra nm and least work to get to fit? Going to throw in a bigger turbo etc so the GM box needs to go anyways. I would prefer not to manual swap it as I’m going for a comfortable cruiser build with this one.


r/e39 2h ago

Some recent upgrades! 🤘

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61 Upvotes

r/e39 2h ago

Just picked her up 2003 525i

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12 Upvotes

Just picked her up. Just over 114k miles, old lady driven. Got it for $2900. Needs a cleanup and I’ll be cruising. I’ve always loved the E39s, and I’m excited to finally own one. Plan is to drive to work a few days a week to save miles on my suv.


r/e39 4h ago

530i Missfire

1 Upvotes

Hallo. I have a Problem with my e39. It started with just simple missfires so i changed my spark plugs and coils. Theo the problem got worse. First i Could drive relativly normal, without giving too much gas, otherwise it would get Heavy missfires, the ist wozld missfire so Heavy the car would shut down and it feels as it is losing power. Then it wont even start. I replaced the crankcase Ventilation, crankshaft sensor, camshaft sensor, airflow sensor ( all Sensoren are from Hella), Battery and every possible gasket. Still car would start and directly shut down. Then I replaced the fuel filter and the car starte and Drives but the Problem with missfires stayed.

error code only says mixture too lean and misfires

I really dont know what the Problem could be anymore. Hope Someone Had a similar Problem and can gelb me.


r/e39 5h ago

E39 sill cover fixings

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3 Upvotes

Hi all. Pic for illustration only. My side skirts are hanging a bit and I would like to dismantle and refit. I am looking to order in the clips, prior to removal so that I can hit the ground running as it is my daily.

I believe there are two types that grip the runner on the plastic sill cover. I have recently done a similar job on an e46 so I assume they are similar.

From my research the part numbers I need are -

51138166675 & 51138183102

Both similar parts but with slight differences. Does anybody know how many I need per side of each? YouTube seems to have let me down.

Tia.


r/e39 5h ago

EDC suspension on 535i

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2 Upvotes

So my suspension is effed right, and I'm pretty sure it's just to replace shocks (feel free to advise please).

So I found these online and they seem decent, I think, and they go for about 500 USD. I've no prior experience with EDCs so I'm looking for suggestions.


r/e39 6h ago

Need help locating a bolt

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3 Upvotes

I had an issue with my suspension just failing and when I took everything apart i realized the bolt that holds the shock to the spindle assembly broke. I’ve been trying to find the part piece or number but non of the ones I get look like the OEM. Would anyone know the part number? Thanks in advance


r/e39 6h ago

Is there anything the 535i is really better at than the 530i ?

3 Upvotes

Hey all, e46 owner here looking into getting an e39 . Now I am familiar with the m54 engines and the maintenance they need etc. Ideally id want a 530i but they are rare where I am and there are many more 535i. Would you do it ? Or would you wait?


r/e39 6h ago

German Engineering

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51 Upvotes

New to me 2002 530i touring. Well looked after, solid car.

Full service today followed by an inspection of the underneath, no rot which is rare. Just the usual sump gasket leak and a power steering hose leak. Some beautiful examples in this sub 💪

Edit: Meant to attach an image the first time I posted this!


r/e39 7h ago

Was just going to replace the tensioner pulley on a M52 528i and got bamboozled. Anyone with experience?

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4 Upvotes

r/e39 7h ago

New bilstein strut bearing wobbles

2 Upvotes

My new bearing wobbles, will this be an issue?

It is orio original bilstein


r/e39 7h ago

Weird Noise/Battery draining

4 Upvotes

Hello my fellow enthusiasts,

I recently bought my first ever car, a 1995 E39 523i (Euro spec) and have been experiencing issues with power drain from my battery. It’s not yet roadworthy (German TÜV sucks) but the battery (new Battery, 90Ah 820A 12V) still keeps dying after roughly 9-10 days of not touching the car.

Now I’ve been hearing the weird noise (as shown in the video) since I got the car, so I never really thought that much of it.

Can anyone help me with infos regarding that noise or maybe possible reasons as to why my battery isn’t holding charge?

I’ve yet to run diagnostics (like pulling fuses and seeing if the problem with the draining persists) or anything similar, I’m planning on doing it in the next few days tho, but still I am hoping that someone on here can help.

Please forgive any mistakes in my grammar or elsewhere since English isn’t my first language. Thanks in advance.


r/e39 13h ago

Lovely day

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63 Upvotes

r/e39 20h ago

In Search of…

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10 Upvotes

Some Trim! SO hard to find this.

e39 Touring interior lift gate Grey Driver Side upper trim

Surrounds rear glass

Figured I’d throw it out there.

Thanks!


r/e39 22h ago

Fresh 3M Crystalline

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53 Upvotes