Sunday, 22 August 2010

184,704 Miles

Still handling crap, suspect big bushes on control arms as they are the cheap ones. But could still be something else.

Oil and filter change.

Thursday, 29 April 2010

174,255 Miles

Passed MOT with no failures!

Just a few cautions about cracked high rear brake light, and some worn gaiters on control arms (bloody things), but not enough to fail. So pleased with that.

Wednesday, 14 April 2010

More Handling Issues

The car is currently handling quite poorly again. I have a lot of play in the steering and it feels, unfortunately, like the control arm bushes at the front are wearing out again.

Control arms - I think I have now learnt that the cheapest option is not always the best option. I have read people saying that you should use OEM quality parts for the control arms else you will end up changing them much sooner than expected. This seems to be the case as I have fitted the low cost option twice now since the new year (only four months ago!) and am in need of replacements already.

So I am going to change them and use OEM Lemforder parts this time, which cost a bit more but will hopefully sort this problem out.

Steering play - since having it back from the garage with new control arms (related or not I am unsure) the steering has become progressively worse. I now have about +/- 10 degrees of free movement before anything makes contact and starts moving. This is far from ideal, especially on the motorway where the car is free to wander in the limits of the free play, resulting in much correction with becomes tiresome and dangerous.

These cars have a steering box, as opposed to a more usual steering rack, which contains a recirculating ball mechanism. There is an adjustment screw handily provided on top of the box, suggesting adjustment is not unusual at some point in its life.

Thanks to a little guidance from BMW E34 Net I was able to adjust the box tonight, finally.

The job was very straightforward; you just locate the adjustment screw, which is quite obvious on top of the box as a threaded stud with a hex hole in it (for a Hex Key) and a locking nut around it. You undo the locking nut to release the stud, then with a hex key (Allen key) turn the stud to adjust the box.

In my case, I turned it one full turn in (clockwise), against the advice on E34 Net, as mine seemed very loose. Nipped the lock nut back off and drove round the block. The steering was much tighter! Very delightful, but perhaps a bit too tight, as it did not self centre. I had to put it back in the centre by pushing it.

So I just turned the adjustment stud back 1/4 of a turn, tried again, still a bit tight, another 1/4 turn back, stil a little tight, another 1/8 and perfect.

The steering now feels much better. The proper test will be driving on the motorway tomorrow. Hoping it will be like a normal car again, albeit with worn bushes, so I am not expecting it to be perfect.

But if it is a lot better, i.e. no steering play, then with new OEM bushes it should be back to the 'ultimate driving machine'!

Sunday, 14 March 2010

170,260 Miles

Changed the rear pads. Easiest job I have done on the car so far.

Make sure you chock the front wheels as this is obviously a rear wheel drive car and therefore nothing will lock the front wheels as simply as putting it in gear, like on a front wheel drive car.

Wheel off, two bolts on the back of the caliper off and the caliper comes off.

Remove the old pads. I tend to clean the area up a bit, where parts mate, i.e. where the pads sit in the caliper carrier; I just clean it up with a wire brush to remove accumulated crud.

Push the piston back into the caliper to make room for the new thickness of the new pads. This was actually as easy as pushing it in. Usually you have to wind the rear pistons in, applying pressure and turning it, but these just pushed in; nice.

I also like to pull the caliper sliding pins out to ensure they are clean and free moving. I clean them up and apply some fresh grease and put them back in the carrier and ensure they are lovely and slippy :)

Insert new pads, re-attach wiring to sensors and put the caliper back in place. Re-insert the bolts, refit the wheel, job done!

Wednesday, 3 March 2010

168,570 Miles

Just the day I went on paternity leave, we were luckily just getting home when the car started making a very funny noise and I could feel it too. It was an awful rumbling noise accompanied by vibration from the engine being felt through the steering wheel. Not nice. I had grim thought when listening to it at first thinking, oh no maybe the crank bearings have gone, as it sounds like a horrible, low down, internal knocking noise.

As I had just started paternity leave I luckily didn't need to go to work, so the next day I limped to the garage and asked someone to have a quick look. The very helpful people at TS Motors, Watford, had a quick look and spotted the obvious that the water pump had gone. The symptom being the rad fan, which is mounted to the pump on the front of the engine via a viscous coupling, was wobbling all over the place.

I was quite surprised, but also relieved, but the thought that the water pump had gone didn't cross my mind initially as the system had not lost any water. Usually, if the bearing fail in the pump, it tends to dump all its water in one go and you over heat. So I was surprised this had not happened. Anyway, looking at it, it was obvious as the fan was just flopping about, I knew the part wouldn't be too expensive, just a labour intensive job, i.e. lots of labour charge.

I would ordinarily do a job like this myself at home, but seeing as we had just had a new baby, it was not really convenient, so I booked it in to the garage to have the work done.

Whilst in the garage, I wanted them to do a few other jobs, seeing as it would be on the ramps. I needed to change the glow plugs, as the engine was becoming very reluctant to start, cranking for 30 seconds plus easily to get started. The cold winter had finally taken its toll and killed them off. The poor starting was becoming a major problem, especially when leaving for work at 0630 when all is quiet and then there's me cranking for a minute!

Also, unfortunately, I suspected the lower front control arm bushes had gone again. I could easily shove the front of the wheel inwards and see the bush flexing far too much. The car had not been handling brilliantly even after changing all the control arms only 2 months earlier. I think it is down to one of two things: Either I fitted them incorrectly or the components were inferior/faulty.

The only way I could think I fitted them wrong was if they were super sensitive to being tightened up with the arms in the correct orientation. You are supposed to tighten the bolt through the bushes with the arms positioned as if the car is at rest on its wheels on the ground, so that in most situation, the bush is not twisted, only temporarily with movement away from the rest position of the suspension. I tightened mine up with the hub jacked up, not literally with the wheels on the ground, so I could only think the angle was not quite right, but I find it very difficult to believe this would cause the bush to fail within two months.

The other idea is inferior or faulty components. I doubt they were faulty. Its possible but very unlikely really. So perhaps inferior. These were the cheapest option arms I could find, only 20 GBP each. I am sure I had read somewhere someone saying that you should really use OEM parts, like Lemforder, other wise cheaper alternatives will just fail quickly and end up costing you more in the long run. I will let the garage choose whatever arms they like and see how it goes.

So all in all, water pump, glow plugs and lower front control arms replaced, in a day's work. Wasn't too costly either, although 90% of it was labour, as usual, which makes me a bit sick knowing I could do it for free. But it was convenient to be free for a day instead of tied up outside with the car.




Got the car back and it starts on the dot, even when cold (very nice!), obviously no more noise from the water pump and handling seems.... better, still not perfect but better. Still things to investigate in that area I think.

Also on my to do list....

  • Tailgate gas struts all needed replacing.
  • Air/con not working
  • Heater still giving me hot air only





Side note... fitted some new interior lights as the ones I had were very basic, as in no map reading lights and no switches at all on the rear ones for someone to turn it on in the back to read. So I got some new ones from someone breaking a 535i which had individual map spot lights and switches in all four positions.

Saturday, 30 January 2010

167,000 Miles

Oil and filter change. Never seen so much oil come out of a car... but then I am used to cars that use their oil. This car dumped what looked like its full 6.75l of oil, hopefully indicating that it doesn't use/loose any oil. I hadn't changed it since I bought it (bad, I know) and who knows how many miles before I had it it had been changed, so it had done at least 15,000 on the last oil without loosing any.

I do try to change oil at a maximum of every 10,000 miles.

Noticed turbo heat shield has come away. It just a bent piece of steel covered with mesh type type... looks like it just fatigued at one of the bends. Will make up a new piece out of some stainless or something.

Also have bought new anti-roll bar drop links, as the current ones are bad, making a noise as they are very worn and I think now effecting handling again... going around bends that make the car want to roll, it suddenly tries to snatch into the corner. So changing these will be interesting to see if it is them causing this. If not then I'll be damned as I have changed every joint and bush at the front end now.

Monday, 18 January 2010

BMW Log - Front End Sorted-ish

Well I was right, the tyres were badly out of alignment and scrubbing badly... so badly the front two tyres wore almost completely smooth in 5 days (~500 miles)! So not only a puncture to replace but now the front two tyres so it had to be new tyres all round. Now I am glad I had already replaced the wheels so I could at least buy normally priced/sized tyres. Still not what I wanted to be doing right now. The tyres were shocking... I was shocked!

  Bald Tyre 1 Bald Tyre 2 Blown Tyre 1 Blown Tyre 2

 So (in the snow) I changed the tie rods, just in case they were not good before going for 4-wheel alignment. As always, should have been a simple job, just wheel off, undo two nuts holding ball joints on either end of tie rod and pop the joints out. But of course things never go smoothly on cars; the inner joints were impossibly seized. The nuts came off fine, but trying to separate the joints out the knuckles proved hard. Once again I broke another ball joint separator tool (the scissors type) so went and armed myself with a couple of alternatives, the fork type (which you hammer between the joint to 'wedge' it out) and a claw type with a bolt to screw onto the joint stud. Access was awkward and I ended up using the fork wedge type to free them but it took about half an hour of constant hammering with a lump hammer and plenty of heat from the blow torch. Advise here is to cut and remove the rubber boot if you are trying to use the fork wedge separator type tool so that the tool is acting metal on metal. The rubber will cushion the blows from the hammer and not work. After an hour or so both sides had been replaced with new tie rods.

  Tie Rods Tie Rod End

 Next morning I go to Blackboots for my 4-wheel alignments (thru lots of snow!). When I get there, they get it up on the excellent Hawker Laser alignment system and show that everything except for toe is OK. Also, they tell me there is no other adjustment on this car! Therefore 4-wheel alignment is not possible. this just strengthens my hatred/mistrust of large 'fast-fit' organisations! So a bit of a waste of time. Well they aligned the toe but there was no need for the fancy laser alignment as all. So when 'fast-fit' told me the car needed 4-wheel alignment, they were either trying to rip me off or didn't know what they were talking about. Both alternatives are not good. I wonder if the guy was there that day they would have done the 4-wheel alignment (obviously realising they couldn't adjust anything except toe) and charge me for it!?! Still anyway, drives a LOT better now. There is still knocking from the front but this is now just the anti-roll bar drop links, which are an 'easy' quick fix and cheap and will not put the car out of alignment again, so they can be saved for a rainy day (preferably not raining). Also it still feels a little vague, like there is play in the steering mechanism but this is to be expected on an old car and I have read ways of taking up this slack, so I might look into that one day.

 New tyre:

  New Tyre