vs
Spark plug OEM BMW or Denso
Ignition coil most likely. I have done many dozens of them. Takes about 2 minutes to replace.
Pros: easy to replace
I did absolutely nothing apart of spark plugs and oil change . I had E90, 188k km, 330d until it meet it's end when I crash it to railguards. it never showed me any lights or anything so I would say around 60-80$ tops.
Pros: reliable, no warning lights
Vehicle:
BMW
Mileage: 188000 km
I recently got Denso (OEM) from my local o’reillys cheaper than the dealer (~$80).
Pros: cheaper than dealer
Bro ABSOLUTELY do the spark plugs yourself. I bought oem Denso spark plugs from Napa Auto for about $180. Then all you need is a spark plug socket w/ swivel head, 10mm socket, 12mm, a couple extensions, needle nose pliers, dielectric grease, and a pick to make life easier.
Pros: save money, easy job
Cons: time consuming for beginner
Denso iridium spark plugs
Pros: improved engine performance
Vehicle:
Toyota
New Denso Platinum spark plugs. Car drives great, no codes, no sputtering or stalling or hesitation.
Pros: car drives great, no sputtering
Vehicle:
Toyota MR2
I did my spark plugs on my 335i f30 and I can say one thing. $400 for labor on spark plugs is treason. Shit should take those "experienced" mechanics maybe an hour.
Cons: expensive labor
Vehicle:
BMW
Swapped the NGKs (around 60k miles on them) for new OEM Denso plugs. That stopped the shaking for about two days, then it came back.
Pros: stopped shaking for days
Cons: shaking came back
Vehicle:
Lexus
Mileage: 96560 km
I’ve had several Denso plugs do this on a couple Camrys I service, and our own. All 2.4 cars. Caused tow ins for both husband and wife’s cars. I’ve fired denso as a spark plug provider, too many failures.
Pros: null
Cons: too many failures
Vehicle:
Toyota Camry
I wish my Toyota 4Runner spark plug service was that cheap in the Toyota dealer. I was quoted $800 parts + labor for OEM Denso.
Pros: OEM Denso parts
Cons: expensive parts and labor
Vehicle:
Toyota 4runner
Write your review
Help others - share your experience with this part.
Comparisons
Show all
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
Which spark plug to choose — OEM BMW or Denso?
If choosing spark plug across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which spark plug are better — Denso or OEM BMW?
In March 2026 on PartReview, spark plug Denso were overall better than OEM BMW.
- OEM BMW received a PR Score of 68 out of 100, and Denso scored 78 points.
- OEM BMW ranked 14 in the overall ranking, and Denso ranked 2.
- The average rating is higher for Denso (3.9) than for OEM BMW (3.6).
-
Spark plug Denso have better feature ratings than OEM BMW:
- Idle - owners believe, that by this property OEM BMW does not differ from Denso.
- Starting - drivers claim, that this property for Denso is outperforms OEM BMW.
- Acceleration - reviews suggest, that this property for OEM BMW is preferred to Denso.
Which spark plug are more popular — OEM BMW or Denso?
In March 2026 on PartReview, spark plug Denso were overall more popular than OEM BMW.
By vote balance, spark plug Denso surpassed OEM BMW:
- For OEM BMW, the ratio of positive (33) to negative (15) votes is 18 votes.
- For Denso, the ratio of positive (447) to negative (123) votes is 324 votes.
By number of reviews, spark plug Denso surpassed OEM BMW:
- For spark plug OEM BMW there are 15 reviews: 9 positive, 3 neutral, 3 negative.
- For spark plug Denso there are 184 reviews: 137 positive, 18 neutral, 29 negative.
Which spark plug do car owners prefer — OEM BMW or Denso?
In March 2026, according to PartReview, spark plug OEM BMW and Denso have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
Other comparisons of spark plug
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug OEM BMW with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
Also available: comparisons of spark plug Denso with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.