*Upset* 'New' 2011 C63 AMG, Yellow Engine Light
#1
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*Upset* 'New' 2011 C63 AMG, Yellow Engine Light
Hi guys,
I'm brand new to the forum. I only signed up last week.
On Saturday 15th, I travelled 140 miles to buy a lovely C63 AMG, late 2011. It has the facelift, the colour dashboard/instrument cluster and seemed very clean with a full service history, 2 year warranty. 83,000 miles.
Test drive and demonstration went absolutely smoothly and I bought the car.
Now I noticed that the car was using Reserve Fuel and I knew that it wouldn't make the 140 mile journey home so I filled up at the closest petrol/gas station. Now they only had two pumps, Unleaded & Diesel. So, of course, I used Unleaded (95 RON).
On my drive home I noticed the Yellow Engine Light was on. So I stopped and called the dealer. I was about 60 miles away. The dealer had closed after my sale but answered the phone and said it's probably the fuel I put in, drive it home and call the warranty company on Monday.
The car drove perfectly, with the Yellow Engine Light on. No loss of performance, or strange noises at all, no warning messages. The car got me home, but all weekend the light has persisted to stay on.
I'm booked into my local mechanic on Thursday, but not being able to drive my sexy 'new' car is so disappointing. I've also ordered an OBD 2 scanner to see if I can diagnose before Thursday.
Anybody got any thoughts on what it could be?
I'm brand new to the forum. I only signed up last week.
On Saturday 15th, I travelled 140 miles to buy a lovely C63 AMG, late 2011. It has the facelift, the colour dashboard/instrument cluster and seemed very clean with a full service history, 2 year warranty. 83,000 miles.
Test drive and demonstration went absolutely smoothly and I bought the car.
Now I noticed that the car was using Reserve Fuel and I knew that it wouldn't make the 140 mile journey home so I filled up at the closest petrol/gas station. Now they only had two pumps, Unleaded & Diesel. So, of course, I used Unleaded (95 RON).
On my drive home I noticed the Yellow Engine Light was on. So I stopped and called the dealer. I was about 60 miles away. The dealer had closed after my sale but answered the phone and said it's probably the fuel I put in, drive it home and call the warranty company on Monday.
The car drove perfectly, with the Yellow Engine Light on. No loss of performance, or strange noises at all, no warning messages. The car got me home, but all weekend the light has persisted to stay on.
I'm booked into my local mechanic on Thursday, but not being able to drive my sexy 'new' car is so disappointing. I've also ordered an OBD 2 scanner to see if I can diagnose before Thursday.
Anybody got any thoughts on what it could be?
#3
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Thread Starter
#4
Super Member
There are thousands of OBD2 codes so until you get the scanner, anything is just a guess. Was the car from a Mercedes dealer with a CPO warranty? If not, I might assume it only covers internal engine problems and these repairs are on you. Many sellers will reset the CEL and it will stay off for the few miles of a test drive but will come back on after you buy it and drive it more.
#5
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Thread Starter
There are thousands of OBD2 codes so until you get the scanner, anything is just a guess. Was the car from a Mercedes dealer with a CPO warranty? If not, I might assume it only covers internal engine problems and these repairs are on you. Many sellers will reset the CEL and it will stay off for the few miles of a test drive but will come back on after you buy it and drive it more.
ENGINE
All internally lubricated parts are covered including:
Camshafts & bearings, camshaft followers & rockers (including hydraulic lash adjusters), connecting rods & bearings, crankshaft & bearings, cylinder block, cylinder bores & liners & seals, cylinder heads, internal bushings & bearings, oil pump & drive, pistons & rings, timing gears, chain, tensioner, valves, springs & guides (burnt or pitted valves and valve seats are not covered).
THE FOLLOWING ENGINE PARTS ARE ALSO COVERED:
Crankshaft pulley and cylinder head gasket. Camshaft drive belts are covered as follows: Camshaft drive belts and tensioners (subject to documented proof that the last due change of camshaft drive belt has taken place as specified by the manufacturer’s recommended servicing schedule).
All internally lubricated parts are covered including:
Camshafts & bearings, camshaft followers & rockers (including hydraulic lash adjusters), connecting rods & bearings, crankshaft & bearings, cylinder block, cylinder bores & liners & seals, cylinder heads, internal bushings & bearings, oil pump & drive, pistons & rings, timing gears, chain, tensioner, valves, springs & guides (burnt or pitted valves and valve seats are not covered).
THE FOLLOWING ENGINE PARTS ARE ALSO COVERED:
Crankshaft pulley and cylinder head gasket. Camshaft drive belts are covered as follows: Camshaft drive belts and tensioners (subject to documented proof that the last due change of camshaft drive belt has taken place as specified by the manufacturer’s recommended servicing schedule).
#6
Super Member
The CEL is rarely for a hard part or else you would notice it on a test drive, like an engine miss, rod or bearing knock or timing chain noise. More likely an emission problem like the EVAP system which can be a pain to diagnose and expensive to repair if the parts are hard to reach.
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#7
Junior Member
Thread Starter
Update: I plugged in the OBD 2 scanner and got two errors.
P2187 & P2189.
I believe it was the 95 RON fuel I put in when I bought the car. I’ve run it down to halfway and refilled up with 99 RON. Gonna put some octane boosters in too.
I hope there’s no long term damage. My OBD 2 scanner can’t clear the codes. It fails when it attempts to do it.
P2187 & P2189.
I believe it was the 95 RON fuel I put in when I bought the car. I’ve run it down to halfway and refilled up with 99 RON. Gonna put some octane boosters in too.
I hope there’s no long term damage. My OBD 2 scanner can’t clear the codes. It fails when it attempts to do it.
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#8
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Update: I plugged in the OBD 2 scanner and got two errors.
P2187 & P2189.
I believe it was the 95 RON fuel I put in when I bought the car. I’ve run it down to halfway and refilled up with 99 RON. Gonna put some octane boosters in too.
I hope there’s no long term damage. My OBD 2 scanner can’t clear the codes. It fails when it attempts to do it.
P2187 & P2189.
I believe it was the 95 RON fuel I put in when I bought the car. I’ve run it down to halfway and refilled up with 99 RON. Gonna put some octane boosters in too.
I hope there’s no long term damage. My OBD 2 scanner can’t clear the codes. It fails when it attempts to do it.
#9
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Thread Starter
Those are lean codes both banks, quality of fuel should not matter for AFR, mostly likely suspect is the intake manifold leaking air at the seals, happens to all these cars eventually - betting they cleaned them and then they cam back after you drove for a while and now they can make the warranty company pay for it.
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
#11
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I feel like I've been conned. Is it worth finding another OBD scanner and attempt to clear the codes before seeing if they come back?
Really hope to isn't the manifold itself. Looking at the online car parts stores, the manifold itself is out of stock everywhere. I can tell this is gonna be draining for me.
Warranty company will charge me a 40% repair contribution due to the car being over 80,000 miles. Plus a charge to make the claim in the first place.
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Welcome to AMG life
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#13
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#14
Junior Member
Where are you located? Depending on the country, you have implied warranty and can hold the selling dealer accountable for fixing the car. Agree with previous post, they likely cleared the codes and made it your problem.
#15
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Odd thing is the car was only serviced less than a month ago (I have the invoice). Air filter, oil filter and oil change. In car computer says that the B Service is due in 350 days.
#16
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So the simple things first, if it was just serviced, check the air filters are on right and the clamps to the rubber thing behind the airboxes are tight and not leaking. Lean means air getting in after the MAF's. Next step to see if the intake manifold is leaking externally either with a smoke test or some people spray carb cleaner around the gaskets - I like to use a propane torch unlit to just add a little propane around the gaskets to see if idle changes, a little safer than carb cleaner which can ignite if you get it on the exhaust.
To clear codes, you will need something like an icarsoft or foxwell mercedes specific scantool.
To clear codes, you will need something like an icarsoft or foxwell mercedes specific scantool.
#17
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Did you buy it from Bradford or somewhere like that?
Anyway, I'm pretty sure you have 30 days of 'Lemon Law' protection when you buy from a dealer in the UK. Look into it...you might be able to get a refund.
Anyway, I'm pretty sure you have 30 days of 'Lemon Law' protection when you buy from a dealer in the UK. Look into it...you might be able to get a refund.
#18
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Interesting update...Got a second OBD reader and plugged it in. It threw up the same two codes, P2187 & P2189.
I tried to reset the codes, the OBD reader gave an error and said codes could not be reset. Started the car, yellow engine light goes out. It doesn't stay on. Ran the car for 15 minutes, just stationary. I didn't drive anywhere as I couldn't leave the house. Car sat idling fine. So far, the yellow engine light hasn't come back on. Strange...but good, I suppose.
Another quick question, my C63 is the 125 model, it has a USB port in one of the compartments but that port doesn't seem to charge an iPhone. It starts charging then stops. Any ideas?
#19
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Damnit, I first typed Birmingham, but deleted it and kept it to Bradford.
For what it's worth, it probably isn't anything sinister (ie lean enough to actually do any damage) but I think on principle, if they've tried to screw you, then that's not cool. Could be plain bad luck though....more investigation will be needed.
Keep us posted and good luck with the issue/the car.
For what it's worth, it probably isn't anything sinister (ie lean enough to actually do any damage) but I think on principle, if they've tried to screw you, then that's not cool. Could be plain bad luck though....more investigation will be needed.
Keep us posted and good luck with the issue/the car.
#21
Member
When my IM gaskets were leaking I got P0171 and P0174 codes. While your codes may be indicating a similar issue, I wouldn't start throwing parts there without confirming that it is the issue.
Lean could be too either much air, or not enough fuel. I would start with checking the intake system from filters back and making sure everything is installed correctly and not leaking any unmetered air. Then I'd clean the MAF sensors. After that, smoke test (or spraying around with carb cleaner) to look for air and vacuum leaks. Someone on the BenzWorld forums solved it with a new fuel filter and new MAFs, while another found a cracked intake manifold.
Here's a thread from the w203 forum with some potential solutions (despite being a different engine): https://mbworld.org/forums/c-class-w203/454463-fault-codes-p2187-p2189.html.
Lean could be too either much air, or not enough fuel. I would start with checking the intake system from filters back and making sure everything is installed correctly and not leaking any unmetered air. Then I'd clean the MAF sensors. After that, smoke test (or spraying around with carb cleaner) to look for air and vacuum leaks. Someone on the BenzWorld forums solved it with a new fuel filter and new MAFs, while another found a cracked intake manifold.
Here's a thread from the w203 forum with some potential solutions (despite being a different engine): https://mbworld.org/forums/c-class-w203/454463-fault-codes-p2187-p2189.html.
Last edited by TPete19; 08-20-2020 at 04:24 PM.
#22
with the reader, what are your long term fuel trims?
I have had manifold leak errors that I've cleared years ago and never returned.
I have had manifold leak errors that I've cleared years ago and never returned.
Last edited by Dogtag114; 08-20-2020 at 03:59 PM.
#23
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Thread Starter
Update: So it’s been over 24 hours. Today I’ve driven about 10 miles. No engine light. So far, so good. Tomorrow is the test, I’ll be doing about 50 miles or more tomorrow.
#24
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Too good to be true. Engine light came back on after 25 miles today. I’m now booked in to get it seen on Wednesday.