Any good advice is appreciated...

I took my 06 Crossfire Roadster Limited to an ASE certified repair facility for engine code P2098, a skipping CD player and oil leaking on top of the engine under the plastic air intake plenum (you can smell the burning oil in the cabin through the vents). I bought an extended 7yr/70K warranty that claims it covers factory installed audio, gaskets/seals, wear and tear and electrical components.

The ASE certified repair shop diagnosed the following: P02098 - catalytic converter has 5 to 6 inch hairline crack in the seem at the curve on upper driver's side. They say it's the reason for the P02098 downstream O2 sensor code. Oil is leaking from the breather box section of the valve covers (left and right side of engine). Need to replace valve covers. Non-repairable items (Mercedes Benz RTV issue)??? CD player skips, need to repair/replace CD player by removing from dashboard assembly. Warranty company denied all of the repairs. ASE repair facility gave me back the car and recommended taking it to the local dealer to see if warranty people would work with them.

Dealer diagnosed the following: Dye test performed and oil leak present, ordered Cylinder Head Cover Gasket P/N 5097104AA. CD player skips, remove CD player from dashboard assembly and send out for repair to the CD/radio manufacturer. P02098 - replace both bank two sensors with P/N 5099820AA and 5099821AA at $544 each. Not covered by extended warranty or chrysler emission control warranty. Oreilly auto parts, Autozone, NAPA and countless others sell Bosch O2 sensor with the OEM connectors for $93 - $170 (price depending upon whether upstream or downstream).

Dealer is stating that warranty company is covering part of the gasket and radio repair minus my $200 deductible, but I am on the hook for $544 x 2 plus tax and labor for the O2 sensors. I can buy the sensors from moparpartsonline for $387 each and put them on myself or I can buy the Bosch parts from Autozone for MUCH LESS MONEY.

What say you? Should I instruct dealer to not install O2 sensors? Does the $544 sensor really outperform the Bosch equivalent. Dealer told me 5099820AA and 5099821AA are made for the vehicle and aftermarket parts have no guarantee of working properly and removing code P02098. Personally, I think the dealer is full of it and I bet Bosch probably makes the "mopar part number" sensors mentioned above. I haven't heard that Mercedes Benz or Chrysler went into the oxygen sensor manufacturing business.

Also, how could I verify that my catalytic converter is cracked/not cracked? I've seen a few other crossfire owner posts where they had cracked catalytic converters and their check engine light posted P02096 and P02098 codes. The ASE certified shop estimated cat converter at $1350.

According to EPA regulations, three parts have an 8 year / 80,000 mile warranty: catalytic converters, ODBI-II and ECM for 1995 automobiles till present.

Thanks for your advice and help...

 

I would absolutely not have the dealer replace the oxygen sensors for that cost! You are correct they are Bosch sensors. The front sensors should run around $110 each.

 

That is why I bought a lifetime warranty through Chrysler for my Jeep.

I doubt that the O2 sensors are anything oddball just probably four wire (heated). Might ask on a Mercedes forum though. Cracked catalytic converter could well be the source of the issue, might replace that first.

P02098 is a new one on me, I cannot find in either the 2005 or the 2007 Factory Service Manuals, seems like too many digits. Doesn't mean it is rong just not in my manuals.

 

For your reading enjoyment:
https://www.crossfireforum.org/forum...ode-p2098.html

The oil leak is SO common with these cars (well, at least it SOUNDS like the common issue so many of us have dealt with) - there is a DIY fix that you could print out and take along with you, any good mechanic that can READ can follow the instructions.

If you have a bad CD player (head unit) then you need a new one, IMO. They are availble on eBay (if you want an OEM one) or at your local audio store if you want something 'snazy'.

Extended warranties are, IMO, worthless unless purchased thru a dealership you trust who has people on staff that can do the work. Since most Chrysler dealers no longer have a Crossfire (Mercedes-BenZ) trained guy on staff, they can't help you.

I suggest you go find some local shop known for expertise with MB products; that is what I did: Buckhead Imports of Atlanta.

 

Thanks, my question is more "why isn't 2098 in the Factory Service manual ?" I could not find any listing for it.

I just replaced my head unit with a Clarion M303 to add Bluetooth and hands free phone capability. Mostly I just use the CD slot as a mount for my phone any more.

Agree, most dealer warranties are useless, why the one for my jeep is through Chrysler. Not worries about service since my Jeep is all current. Crossfire has over 100k miles & all is on me. Do have more cars than needed so can park any for a while.

 

I got 44,900 results to P2098 using search.

 

I had a "P2098 Post Catalyst Fuel Trim System Too Lean Bank 2" code on my G8. Turned out it wasn't the converter OR the O2 sensors ------------- the computer just needed reflash / updating. All has been well and no check engine light (fingers crossed) for 5 months now.

 

That is why you make the search more precise like OBD p02098 which gave this. Since the CC has a leak, that would match.

My issue is that 2096 and 2098 are not mentioned in the FSM and no 0430 (but has 0422 and 0432, may be more appropriate since twin CCs.)

 

There is way too much left out of the book, that is for sure.

I often don't even waste my time with it, I google the code + "Mercedes" and usually find what I want out on the 'net somewhere.

 

I've changed all 4 of my 02 sensors and they are all Bosch. The two in the front are 16167 and the two in the back are 16276. There is no difference whatsoever between the dealer parts or the aftermarket parts in this case except for the Mercedes emblem or part number embossed on them. No way you should pay more to the dealership. Whether or not that is going to solve your CEL is a whole another issue. You can take the car to an exhaust shop and they can tell if you if you have an exhaust leak, I have done that too.

 

PNA - You are lucky. I did read that "bad gasoline" or a loose fuel cap can cause the P02098 code and check engine light to come on. However, in my crossfire, the tailpipes are filthy from the fuel burning lean and it smells bad on startup as opposed to what it used to smell like. The engine light went off at one point back when it first came on two months ago, but came back on shortly thereafter and has stayed on ever since. I reset the light once with a code reader, and it came back on within a few days. As per our owner's manual, I always put premium fuel in the tank. Every once in a while, I will also put in octane booster. Hopefully, the octane booster isn't causing any funny business.

I checked O2 sensor prices online: Bosch, NTK, Denso, Delphi, Walker and AirTex/Wells all make oxygen sensors for the Crossfire. AirTex/Wells looks to be the most expensive $387.00. The dealer Mopar part is $544. Does any one know if the AirTex/Wells are Mopar parts 5099820AA and 5099821AA? Dealer claims aftermarket parts may not clear CEL and DTC P02098. I intend on using the 02 sensors with OEM connectors, not the Universal fit ones.

Anyone have any wisdom on which sensor has the best track record (most reliable). Bosch appears to be the cheapest and AirTex/Wells and Denso the most expensive. Denso left down-stream after cat converter P/N 234-4884 lists at $526.99. OMG! Close to Mopar price $544...

I believe all 02 sensor manufacturers have a 12 month warranty.

Thanks!!!!

 

I'd bet you the "Mopar" one from the dealer is the RIGHT part for the car and that it will turn out its a Bosch. When it comes to electronics and in particular sensors, the car is all Bosch.

The secret is to not buy it from a damn dealer. My Bosch Crank sensor was $45 from German Auto Supply, they are over 3 times that at a dealer.

You can order original Bosch O2 sensors here for around $100 each:
Auto Parts at AutohausAZ - OEM Auto Parts - Discount Replacement Parts, Resources and Car Care Tips

 

Mark : What function is relative to code P2098 ...??

 

P02098 - Downstream Fuel Trim System 2 lean. Possible causes: exhaust leak near 02 sensor (cat converter), failed O2 sensor, fuel contamination, gas cap not sealing. In other words, this is Bank 2 / Sensor 2 (left rear).

Chrysler dealer wants to replace both sensors for bank 2 (upstream and downstream) for $544 each. Dealer claims my catalytic converter is not cracked, as per ASE certified repair shop diagnosis. Any OEM new sensors better fix this problem, or I will be insistant upon a full catalytic converter crack investigation!!!

 

"the tailpipes are filthy from the fuel burning lean and it smells bad on startup " - like rotten eggs ? That is over rich, not lean. Lean burn will also leave the pipes clean/gray unless you have burned a piston and are dumping oil.

Also if both were really bad you should see a gross difference in the bank 1 and bank 2 sensors all four of which can be monitored simultaneously on my telephone. (see the OBD thread).

 

OK so I had to try - can only see 6 parameters at once on small screen while driving but with five pages...

This one is of bank 1 on left and 2 on right with values from sensor 1 (front) at top, sensor 2 (rear) in middle, and fuel trim on the bottom.

All are transitioning and can see best at cruising speed but can tell pretty quickly if one is out of whack from its mate.

 

Are both Bank 2 sensors, upstream and downstream of Passenger side of car or driver side? Is Driver side left or right? I am getting varying responses from Auto parts stores and manuals...


Thanks...

 

The Right side is the passenger side (US)

"The Oxygen Sensors (O2S) are attached to, and protrude into the vehicle exhaust system. The vehicle uses a total of 4 sensors; 2 upstream (referred to as 1/1 and 2/1) and 2 downstream (referred to as 1/2 and 2/2). The right upstream sensor (1/1) is located in the right exhaust pipe just before the mini-catalytic converter. The left upstream sensor (2/1) is located in the left exhaust pipe just before the mini-catalytic converter. The right downstream sensor (1/2) is located in the right exhaust downpipe just after the mini-catalytic converter, and before the main catalytic converter. The left downstream sensor (2/2) is located in the left exhaust downpipe just after the mini-catalytic converter, and before the main catalytic converter."
2005 FSM pg 14-54

"The downstream heated O2 Sensor signal is used to detect catalytic convertor deterioration. As the convertor deteriorates, the signal from the downstream sensor begins to match the upstream sensor signal except for a slight time delay. By comparing the downstream heated oxygen sensor signal to the signal from the upstream sensor, the PCM
calculates catalytic convertor efficiency. This calculation is also used to establish the upstream O2 goal voltage (switching point)."
('05 FSM pg 14-55)

pictures on 14-56

This means that in closed loop cruise a good system should have the upsteam sensors constantly transitioning between about .2 ad .8 volts while the downstream sensors should sit on about .4-.6 and do not vary much. (I will test this theory the next time I take the CF out).

A cold sensor will read about .5v and not change much until it gets hot enough to "light off". This should be in a few seconds for a hot engine or a minute or more for a cold engine. Until then it is running "open loop".

BTW this means if a cold engine smells bad (too rich) on startup, the problem is not the O2 sensors or catalysts because they are not yet active.

ps Other than being 4 wire designs, I do not see anything special about these sensors that would warrant a price over $100, specs sound like any other O2 sensor since the original one wires, heater is just to get it to light off faster. Might have a special connector though.

Might look here - call if have questions.

Are these the right ones ?
Chrysler Crossfire Bosch 16167 Oxygen Sensor, OE Type Fitment by Bosch (upstream)
Chrysler Crossfire Bosch 16276 (downstream)

 

Thanks Padgett!!!

Left side is drivers side (BANK 2 - 1/2 and 2/2). Dealer wants to replace both.

Before the dealer, an ASE certified repair facility specializing in BMW and Mercedes Benz told me the catalytic converter has 5 inch long hairline crack on top part of curve on driver's side. Dealer claims Catalytic Converter is not cracked and that the sensors are bad. The only code was P02098. I did not see a code for the upstream bank 2 sensor. Dealer claims other codes would be present for bad catalytic converter.

I will be extremely UPSET if I replace both sensors to find out the CEL still comes on and throws the DTC P02098 because of a 5 inch hairline crack in my catalytic converter. The catalytic converter from Chrysler is $1355 without labor and the cat converter is supposed to be covered by the 8 year / 80,000 federal emission warranty.

Last question: Dealer has ordered the two Mopar sensors (P/N 5099820AA and 5099821AA) from detroit warehouse, since they had none in stock. $544 each plus labor. We are still waiting for them. If I refuse these sensors, can dealer charge me for a restocking fee or other such nonsense???

I found the 02 sensors (Bosch) at RockAuto for really good prices...

Thanks!!!

 

Did you sign something?
The parts are probably the same parts - Bosch.
Anytime you put yourself at the mercy of a dealer you can be assured you will not get any.