A co-worker has the C-320, and the dealer quoted her $385 to change the
spark plugs. I thought this was insane, so I told her I would take a
look. I couldn't remove the big plastic cover over the engine! The
front lifts off, but doesn't come off, and the back and sides are on
there good.
Is there a hidden set of screws? How does this thing come off?
Also, are there 12 plugs, attatched by a strange set of ignition wires,
making the task of changing the plugs a 3-hour ordeal for the dealer?
Thanks!
Andy
Tiger - 06 May 2006 01:28 GMT
There are two plugs per cylinders. Yes, there are hidden screws for those
cover... look for those 'caps.' $385 seems kinda high but considering each
plug is $10 each... so that's $120 there alone.
I believe these plugs are 100,000 miles plugs.
Gordon Hudson - 06 May 2006 13:15 GMT
> There are two plugs per cylinders. Yes, there are hidden screws for those
> cover... look for those 'caps.' $385 seems kinda high but considering each
> plug is $10 each... so that's $120 there alone.
>
> I believe these plugs are 100,000 miles plugs.
They cost more than $10
Last ones I had to get for a nissan (in the UK) were about $50 each.
They are supposed top last a very long time.
Josh - 06 May 2006 13:48 GMT
Plus you will probably need the special tool for removing the wires from the
spark plugs. It costs approx. $70.
You might want to get a quote from a good independant MB mechanic. It still
won't be as cheap, but it might save a few bucks.
Josh
nick - 06 May 2006 19:26 GMT
"AndyK" <akatz@lordabbett.com> wrote in message
>A co-worker has the C-320, and the dealer quoted her $385 to change the
> spark plugs. I thought this was insane, so I told her I would take a
> look.
I'd look away if I were you, the plugs have a nasty habit of coming out with
bits of the head attached, especially if they've been in since new...