He hasn't posted for a couple of years, he did not like Mercs much, as I recall.
The plastic sump turns brittle with heat cycles and cracks when trying to remove the sump plus. Not something mb put into the equation when designing plastic parts.I'm not a mechanic but I would presume that the natural wear of the engine over the years would cause sediment but I suppose only a professional mechanic could confirm that
Why do cars have sump plugs if the norm is sucking the oil out?
He hasn't posted for a couple of years, he did not like Mercs much, as I recall.
That's because if it did there would be so much swarf stuck to the inside of it you wouldn't be able to get it out.My MKIII Cortina didn't have a magnetic sump plug
Unfortunately I have had very bad experiences of the main MB dealers. I seriously decided never to use them but that's my own personal experience as I'm sure some people have a good experience with MB- just not me.
I use Arnold C. They are absolutely superb- always looked after me and always up front and honest.
The MKV was a Cortina not a Sierra. I've had a MKIII GXL, a MKIV Ghia, a MKV Ghia and a Sierra GLS.That's because if it did there would be so much swarf stuck to the inside of it you wouldn't be able to get it out.
Only joking??? I had every mark of Cortina, including the MKV (Sierra) The poor man's luxury car.
The MKV was a Cortina ....
Sierra GLS with the “tool eater” and MT75 gearbox was a great car, best gearbox they ever madeThe MKV was a Cortina not a Sierra. I've had a MKIII GXL, a MKIV Ghia, a MKV Ghia and a Sierra GLS.
Everyone called it a MKV and it was a Cortina not a Sierra.Actually ..... there was no such thing as a MKV Cortina ... it was the MKIV 1980 series
They don’t have an MB franchise there do they?Warrington. To be honest I am over the moon with them. They have a customer for life in me.
Everyone called it a MKV and it was a Cortina not a Sierra.
Trouble with that was the sumps themselves were ferrous so although a magnetic plug certainly would collect any ferrous debris, so would the inside of the sump itself as it would be magnetised by the plug. I’ve always believed the key to long engine life is regular oil/filter changes around 5k miles, regardless of what the service schedule or onboard indicator may say.I remember draining the oil on my old ford Cortina many years ago and finding tiny shards of metal attached to the sump nut so they definitely used to be magnetic.
***IMPORTANT UPDATE***
Today (Christmas day) while driving along the M62 with my wife in the car heard an almighty bang from the underside of our slk.
Believing it to be a flat tyre I pulled into the hard shoulder.
Luckily there was not much traffic.
We called the AA and told an hour's wait.
I quickly googled "banging sound Mercedes slk at 50mph".
The Merc forum came up with a guy saying after a Merc service the sump panel that stops water splashing into the engine compartment was left loose.
I threw on a high Viz and coned off the car, then quickly looked under the engine.
Low and behold Arnold Clark had left two bolts out when refitting the panel.
The wind had caught it, dragging it down onto the motorway.
Luckily it was not ripped off completely but it's badly scratched.
I had to continue our journey at 30mph.
Luckily we were 500yds from junction 2 on M62.
So now I will be going back to AC with a complaint, wanting to know why the mechanic left off two obvious bolts? View attachment 54742
Thank you for explaining.The plastic sump turns brittle with heat cycles and cracks when trying to remove the sump plus. Not something mb put into the equation when designing plastic parts.
There isn’t a merc with a magnetic sump plug but they put magnets in later gearboxes??