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Found 14 results

  1. ger

    Thermostat failure

    Recently my brother has been reporting that his car (virtually identical to mine, a e61 535d, 2008, about 70,000miles) was hanging on to revs before changing gear and that his mpg was down. This got me thinking of thermostats (I understand that the gearbox control sw hangs on to gears more when engine/box is cold, to help get things warmed up quicker, so hanging on to revs-not warming up-stats!). We had changed the engine and egr thermostats last year, so I naturally thought of the gearbox heat exchanger and duly fitted the inline thermostat mod. This seemed to do the trick for a few days. Then the temps dropped a bit, mid 70's. Ok. I had a spare egr thermostat so thought it a good idea to swap that out, it was a relatively quick job. Unfortunately, the temps remained identical. Only one left was the engine thermostat. So, we got a new one and changed it today. I was pretty shocked to find that the replacement I fitted last year had broken! The plastic that holds the thermostat down, on one side has snapped! Another pic: The spring pressure is quite strong and over time the plastic must have given up. I presume the wax part of the stat was ok, but this made things difficult for it to work or it's extended too far and leaked out. Either way, with the new stat fitted, the car is again at running temp and gets there quickly. The broken stat was a Vernet from eurocarparts. We got a Circoli one this time as it was in stock locally and a bit cheaper! Glad it was different, let's hope this one lasts longer. If I find the receipt, I'll take it in to see if they'll replace it or give us some money back. Anyway, sometging else to think of with these bloody things!
  2. HandyAndy_UK

    N53 Thermostat

    Well after much searching it appears that there's sod all (so far) regarding the thermostats on petrol engines. Specifically the N53 3.0 petrol engine. Masses on your diesels but SFA on petrols. So, what I've come up with so far is that my E61 525i manages to make it to about 77c... maybe 82c at a push, but then comes down to 75c (as reported in the maint. menu option 7) As the spec for the N53B30 engine calls for an operating temp of 100c I'm thinking the stat has had better days and so replacing with Pt No. 11537549476 would be a smart move. So the questions are, are my assumptions correct/reasonable? Is it a pig of a driveway job as it looks - all done under front right hand corner? Anything that would help me to know before I start ordering bits and planning a 'fun weekend' ?
  3. I have a 525d 2013, and have been having a blast owning this car so far. Recently there was a recall regarding the egr cooler, so I took it to the dealership and all was taken care of (as far as I know at least), action that took place like two weeks ago. Im not totally sure if this new issue that Im having is related to this part change, but since that part change I have a issue on cold starts. The issue happens only when the outside temperature drops bellow 3deg C. Basically I run the start procedure, the car start fine, but after a few seconds I can see the temperature gauge moving randomly, from the default position 50, to 70, 100deg C, and back again for around 5-10 mins. During this period, the car revs up to 2000 - 2300 rpm, with intermittent drops during this period. Also when this issue happens, the fan blowers in the front of the car move to full speed as I think its trying to 'cool' down the engine somehow. After 5-10 mins, the issue disappears, the temperature gauge drops back to default position, all fans shut down and the car doesnt rev up on its own, like nothing has happened. No error codes, no lights in the dashboard also. Has anyone encountered this issue so far, or has any ideas if this is somewhat related to the egr cooler? Im trying to document myself as best as I can, as I have to take back to the dealership, and hopefully not pay for something that I didn't break or not be taken for a ride. Any ideas or suggestions are much appreciated. Thank you!
  4. Hi folks. I am new here and I am new to the 5 series. This is the car I have wanted since I saw it for the first time back in 04 and now I'm lucky enough to own one. My very own 530d. But unfortunately it comes with a few gripes. Thermostats!! As we all know. They are weak. Replacing them is futile. So. People around the world have took it upon themselves to fix the issues themselves in their own way. One is the inline thermostat in the top radiator hose which a fix for the main and EGR Thermo stat. The other is a VAG inline thermostat fitted to the hose that goes to the gearbox heat exchange. No my questions (sorry it took so long) Can both "fixes" be used together? If you do the top hose thermostat is the gearbox one even needed? Should I bite the bullet and pay out a small fortune replacing them all with genuine parts every time they fail. Should I have got a Kia? Haha. Thank guys.
  5. Hi all, I need to replace my thermostat on my E61 2.0d M Sport, it has the N47 engine (177bhp) Anybody know of links to guides pics/videos on doing this job? It only has the main Stat and not the EGR one on this engine.
  6. I have moved my original post on ABS/DSC fault and trans fault to another thread as this one deviated - this will now focus on thermostat bolts! I was planning on doing my main thermostat anyway later on. Any watch points? things that might go wrong? Andy
  7. I have an '04 E61 with goosed stats (temperature never rising about 70) I've watched some tutorials and feel really confident that I can DIY the stats, by have some questions about coolant which doesn't seem to be covered in the guides I've watched/read. - When changing the thermostats should I drain the coolant? - If not, can I just allow some to leak while changing the main thermostat and then top up? Should I remove the underside tray? - Do I need to bleed the system of air? How? Thanks a lot for your help, I really appreciate it!
  8. Hey, just had a question so wondered if anyone here could answer for me I've had an LCI 525d M Sport (Manual) for almost a year now, love it! But I figured it's about time. Time to give her a remap for her birthday present. But I'm in a dilemma.. I've been reading about a DPF gut and EGR delete on many of these forums to go alongside the remap for obvious benefits such as no clog worries and bhp gains. I do know it may come with a bit of extra smoke but the efficiency and power gains will offset this in my eyes so I can potentially live with the smoke. However there's one thing putting me off.. 1 - I know if it's a gut, it won't really be detectable in an MOT so that won't be a bother. But what if you need to sell the car in the future? Has anyone experienced any problems in removing the DPF and trying to sell the car thereafter? Especially since you're doing a permanent (I think?) illegal move in removing the dpf? Wouldn't really want to fork out £1200+ installing a DPF to sell the car.. PS. What are the pro/cons of doing a remap without the DPF gut & EGR delete? Thanks!
  9. hensonandbedges

    BMW Mini One 2004 overheating

    Afternoon, New to this site, so go easy! I've got a 2004 BMW Mini One, and it's just started overheating. At first I thought it was a leak in the rad, as the temp light went red, so I let it cool down, filled the tank with water, and it drained out in a couple of hours. Made my journey home (slowly, stopping every mile to let it cool.) and noticed that there was no hot air coming in through the fans. Opened up the bonnet and the water I'd added before I started my journey was still in the coolant tank. Suspect the thermostat maybe the issue (and still a leaky rad) but think the thermostat is stuck, so not letting anything into the leaky rad. Any ideas? Does this sound right and is the thermostat an easy job to do myself? Local Cooper BMW want £250... Thanks!
  10. REFERENCE: 2007 525d (3-litre engine) chassis number WBANX52040CW82095 Hello, I’d be grateful for prices for the follow items for my car please: Main engine thermostat (and any additional gasket/seal if not included with the thermostat).EGR thermostat.Antifreeze.Engine oil filter element (and seal or 'O' ring if required). You did quote me via the 5-Series forum a while back (quote 59077) but I guess prices may have changed. I know you usually include carriage in the price, but perhaps you’d let me know if it’s cheaper to collect as I’m not far away. Many thanks.
  11. Hi Guys... This is my first post... I've got a leak on the cooling system, which my mechanic says is either from the thermostat or pump. My X reg 530i is now on 88K. I've read the posts that its best to replace the whole cooling system in one go, which I am happy to do.. My question is.. Is it best to by all the parts from BMW? Are there pattern parts from say EuroCarParts etc that are more than up to the job? Are there parts I can look for that exactly the same but without the BMW sticker on them? EG is a BEHR radiator the same as what I have without the BMW part number. Thanks
  12. Well......just had my main engine thermostat changed due to all the advice on here and plumeting MPG (18 round town/30 on a run if i'm lucky!!!), but no change......... My car still takes an age to 'luke warm' up (!!) and even after all day running never has less than 9 marks showing on the temp gauge. Whats this EGR thermostat? Could that be the problem? What MPG should i expect, as to be honest never seen much more than 26 in town and 32-34 on a run, and i'm not a F1 driver by any stretch of the imagination! Hope someone can help?
  13. Hey Guys Pretty sure one or both of my thermostats are fubarrred. I accessed the hidden menu and this is what I saw on a 80miles journey just on dual carriageways (apart from the initial 3 miles 30mph to the A1) It took the car about 40miles just to get upto about 70 degrees. At that point it very gradually made its way towards 80 and right near the end of my journey settled at around 83. If I put my foot down the temp dropped rapidly, less rapidly made its way back up afterwards. If I stuck it in Sport (same speed increasing the revs) the temp dropped a few degrees. At my destination I left the car on tickover for a good 30mins, the temp had increased to about 91. Pretty sure its a thermostat problem, but based on these symptoms is it the main one or the EGR? And where is the best place to buy them? Apart from a BMW stealer BMW Parts Online anygood? thanks
  14. I'm not convinced ours is getting the mpg it should. With cruise set to 70mph, south down the A1 for 80 miles, with 6 miles urban driving I'll see 37mpg on average. The dotted red line on the rev counter does shrink but does take a good 15miles to get to just 4 bars remaining (not sure if thats an indication of a thermostat problem?) The car has done about 85k so figured changing them probably won't hurt. I can get a very good discount on Euro Car Parts. But should I avoid those and get BMW ones? Or is there another supplier that would be a good compromise?