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Author Topic: Merc MAF code  (Read 25448 times)

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Jimbob

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Re: Merc MAF code
« Reply #15 on: 16 March 2026, 05:06:37 »
Inlet manifold bolts all done, and Fuel filter housing all sorted.

EGR to wrangle into place, and some more very awkward bolts to do next

Getting there!
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Re: Merc MAF code
« Reply #16 on: 16 March 2026, 09:54:19 »
One layer at a time  :y
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Jimbob

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Re: Merc MAF code
« Reply #17 on: 16 March 2026, 10:37:55 »
indeed, not fun, no access.
an hour to do a bolt is frustrating!
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Sir Tigger KC

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Re: Merc MAF code
« Reply #18 on: 16 March 2026, 11:34:57 »
Quote from: Jimbob on 16 March 2026, 10:37:55
indeed, not fun, no access.
an hour to do a bolt is frustrating!

Ah a 'B-bolt'!  ;D
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Jimbob

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Re: Merc MAF code
« Reply #19 on: 16 March 2026, 11:49:03 »
Quote from: Sir Tigger KC on 16 March 2026, 11:34:57
Quote from: Jimbob on 16 March 2026, 10:37:55
indeed, not fun, no access.
an hour to do a bolt is frustrating!

Ah a 'B-bolt'!  ;D

Lots of B-Bolts!
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Jimbob

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Re: Merc MAF code
« Reply #20 on: 20 March 2026, 07:45:58 »
f3cking EGR bolts :(
Can I get the last bugger to line up :( not helped its at the top of the engine at the back, but done from underneath
so 18 inches of 3/8 ext, Universal joint, another 6 inch extension and then the E10 
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Re: Merc MAF code
« Reply #21 on: 20 March 2026, 08:56:07 »
Quote from: Jimbob on 20 March 2026, 07:45:58
f3cking EGR bolts :(
Can I get the last bugger to line up :( not helped its at the top of the engine at the back, but done from underneath
so 18 inches of 3/8 ext, Universal joint, another 6 inch extension and then the E10
Are the other bolts still loose to give some jiggle room?
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Jimbob

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Re: Merc MAF code
« Reply #22 on: 20 March 2026, 09:42:52 »
 They werent, but it had movement, ill loosen off and try again for next go.  Can't jiggle and fit the bolt at the same time, and its never the same with 2  ;D
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Jimbob

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Re: Merc MAF code
« Reply #23 on: 22 March 2026, 13:42:41 »
Finally got it all back together, leaked coolant at the back, but nipping up the top egr bolt sorted that.
Code remained, and would not delete. 
Bit of research and did a Lambda and 'HFM' reset with the Artidiag.  That reset the values and cleared the code, taking it out of limp.

best part of an hour test drive done.

Driving like a new car!  smoother than its been in a long time, no hesitation, no whoosh air leak sound. 
Seems watertight, but will monitor for a week before I reattach the undertrays.

Re-checked codes, all good, DPF regen mush have happened on the test too as down to 10% again now.

Fingers crossed it remains all good.  VERY glad that job is done.  Would have been very expensive in a garage and one hell of an acheivement for me getting it done.
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Re: Merc MAF code
« Reply #24 on: 22 March 2026, 13:50:43 »
 :y :y :y
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YZ250

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Re: Merc MAF code
« Reply #25 on: 22 March 2026, 13:52:34 »
Quote from: Jimbob on 22 March 2026, 13:42:41
......
Fingers crossed it remains all good.  VERY glad that job is done.  Would have been very expensive in a garage and one hell of an acheivement for me getting it done.

I bet you're relieved that's over. Good job done, hope it's sorted.  :y
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Re: Merc MAF code
« Reply #26 on: 22 March 2026, 14:27:27 »
Nicely done :y
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Re: Merc MAF code
« Reply #27 on: 03 April 2026, 12:55:07 »
Well an airleak code popped back up, cleared it a few times to keep me going.

Could feel a draught when I slid my hand in the area while running, so removed the cooler for a better look.

What was one EGR pipe is now 2 half EGR pipes.


Bodged back together with O-rings.
Will order a new pipe.
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Jimbob

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Re: Merc MAF code
« Reply #28 on: 09 April 2026, 07:50:20 »
Replacement pipe fitted and its back running properly again :)
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Re: Merc MAF code
« Reply #29 on: 09 April 2026, 11:56:10 »
Quote from: Jimbob on 09 April 2026, 07:50:20
Replacement pipe fitted and its back running properly again :)
Well done for sticking at it, Jimbob  :y
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