E91 Straight Six Bearding
Discussion
Swervin_Mervin said:
Watch out when it comes to bolts. If you order the control arm kits from BMW they come with replacement fixings. I understand most of the bolts are stretch bolts so only really meant for 1 use.
Whilst I got some of the Lemforder bits from CP4L i still had to order nuts/bolts from BMW
It can get quite difficult to keep track of what you need!
Yes, just looking at that and creating a list isn't that straightforward, as you say. Lemforder appear to do fitting kits of nuts and bolts for various assemblies.Whilst I got some of the Lemforder bits from CP4L i still had to order nuts/bolts from BMW
It can get quite difficult to keep track of what you need!
Swervin_Mervin said:
Misfire this morning from my N52 330.Was fairly bad under load. Hmmm. Switched off and restarted and all ok again. Fingers crossed it's not a coil, and just a temporary blockage. I wasn't aware these were especially known for any such issues.
My 325i N52 had a one-off misfire over a year ago. I swapped coils around to check for a bad coil and it hasn't recurred since, so it's possible you won't need a new coil yet. Read the codes and you'll know which cylinder was misbehaving. In any case, replacing coils is easy on these cars.
Swervin_Mervin said:
Misfire this morning from my N52 330.Was fairly bad under load. Hmmm. Switched off and restarted and all ok again. Fingers crossed it's not a coil, and just a temporary blockage. I wasn't aware these were especially known for any such issues.
Coil packs are £20 and, in most cases, quick and easy to swap out.My boxster started to misfire in cold/damp weather. Replaced all 6 myself with the latest spec ones from ECP. Cost about £120 ish.
The old ones had hairline cracks in 4 out of the 6.
Changing them on an N52 should be simple. The only mildly awkward bit will be removing the plastic and microfilter covering the rear half of the engine
The old ones had hairline cracks in 4 out of the 6.
Changing them on an N52 should be simple. The only mildly awkward bit will be removing the plastic and microfilter covering the rear half of the engine
Had a few misfires with my n52, first time was plugs, then coils.
Recently had a bad misfire that was the Vanos solenoid sticking, car struggled to idle and no EML.
Could only read it with my diagnostic kit, and cleared when I restarted the car. Only happened after 3 - 4 hrs of driving.
If the inlet one fails the car feels flat, the exhaust not so much.
Recently had a bad misfire that was the Vanos solenoid sticking, car struggled to idle and no EML.
Could only read it with my diagnostic kit, and cleared when I restarted the car. Only happened after 3 - 4 hrs of driving.
If the inlet one fails the car feels flat, the exhaust not so much.
Swervin_Mervin said:
Yeah, no code reader. Well, that's a lie. I have a BT one and the Torque app, but it refuses to read in my 330, even though it works no trouble in the F20 125 we have.
I didn't realise coil packs were so cheap - is that OEM?
Curious. I've only got a cheap ebay Bluetooth reader (one of those generic sub-£10 ones) and it works fine for reading generic codes with Torque. It clears them too, now that I've worked out the correct sequence of actions! (Ignition on without starting the engine, clear code, ignition off.)I didn't realise coil packs were so cheap - is that OEM?
Might be worth trying a different one?
(My car is a 2006 E91 325i if it makes a difference.)
Swervin_Mervin said:
I found this at lunchtime on E90post - any truth in this:
"99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
I think you notice a difference between a minor hiccough and the engine running on three."99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
ferrisbueller said:
Swervin_Mervin said:
I found this at lunchtime on E90post - any truth in this:
"99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
I think you notice a difference between a minor hiccough and the engine running on three."99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
MajorMantra said:
Swervin_Mervin said:
Yeah, no code reader. Well, that's a lie. I have a BT one and the Torque app, but it refuses to read in my 330, even though it works no trouble in the F20 125 we have.
I didn't realise coil packs were so cheap - is that OEM?
Curious. I've only got a cheap ebay Bluetooth reader (one of those generic sub-£10 ones) and it works fine for reading generic codes with Torque. It clears them too, now that I've worked out the correct sequence of actions! (Ignition on without starting the engine, clear code, ignition off.)I didn't realise coil packs were so cheap - is that OEM?
Might be worth trying a different one?
(My car is a 2006 E91 325i if it makes a difference.)
Hi Swervin.
When I had what felt like a misfire / rough running. That ended up being a broken DISA valve with the butterfly van stuck in the inlet port – which made it run rough and hiccup on idle. It could also be the eccentric shaft sensor – but that’s pricy and bit of a PITA to change – I only changed mine as they’re a known failure point and I had the valve cover off anyway (didn’t want to go through all that again to change the sensor!), but check for oil seeping through the connector.
Otherwise, I did plugs and coils as I worked out I had one go (did the simple unplug and listen for engine note change test, if the engine not doesn’t change, then it’s dud!) – I changed the coil packs and sparks as they were kinda due anyway, over 180k miles on the original coils wasn’t a bad innings really.
To be honest, it doesn’t sound like the first couple of items, but worth checking/ruling out anyway.
Not heard of fuel cut on 3 cylinders…!
Mine’s in for the blower motor recall on Monday, and after that I’m going to get it aligned coz I’m gonna change the track rods on Saturday (shiny new 38mm crowsfoot has arrived specially for the job!), my mate’s at work 335i cut out on him with B+ cable issue – BMW recovered it to get the recall and he’s driving a dreadful Renault Captur in the meantime!
When I had what felt like a misfire / rough running. That ended up being a broken DISA valve with the butterfly van stuck in the inlet port – which made it run rough and hiccup on idle. It could also be the eccentric shaft sensor – but that’s pricy and bit of a PITA to change – I only changed mine as they’re a known failure point and I had the valve cover off anyway (didn’t want to go through all that again to change the sensor!), but check for oil seeping through the connector.
Otherwise, I did plugs and coils as I worked out I had one go (did the simple unplug and listen for engine note change test, if the engine not doesn’t change, then it’s dud!) – I changed the coil packs and sparks as they were kinda due anyway, over 180k miles on the original coils wasn’t a bad innings really.
To be honest, it doesn’t sound like the first couple of items, but worth checking/ruling out anyway.
Not heard of fuel cut on 3 cylinders…!
Mine’s in for the blower motor recall on Monday, and after that I’m going to get it aligned coz I’m gonna change the track rods on Saturday (shiny new 38mm crowsfoot has arrived specially for the job!), my mate’s at work 335i cut out on him with B+ cable issue – BMW recovered it to get the recall and he’s driving a dreadful Renault Captur in the meantime!
Swervin_Mervin said:
ferrisbueller said:
Swervin_Mervin said:
I found this at lunchtime on E90post - any truth in this:
"99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
I think you notice a difference between a minor hiccough and the engine running on three."99% of the time it's not the plug or coil pack. When that happens it shuts down the back fuel rail bank and runs on three cylinders. When you shut down the car and restart it, it should run fine"
Swervin_Mervin said:
I did some reading about it and it seems that with this gen of E9x it can be a complete lottery as to whether a BT reader will work or not. I should pull my finger out and get a proper cabled jobbie really. I did look into INPA but it looks like a right faff to get going with.
Interesting! I briefly looked at 'proper' readers and decided I couldn't be bothered either. bmwmike said:
I wouldn't even contemplate running an older BMW without INPA or ISTA/D.
Not too bad to get running and worth their weight over a bogo generic reader especially for live data and ISTA/D includes test plans and instructions as well.
I got lost just trying to figure out what leads I needed and whether I needed an ancient laptop to run it on!Not too bad to get running and worth their weight over a bogo generic reader especially for live data and ISTA/D includes test plans and instructions as well.
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