{"id":19212,"date":"2026-09-13T11:03:08","date_gmt":"2026-09-13T09:03:08","guid":{"rendered":"https:\/\/www.stolkcarparts.com\/?post_type=product&p=19212"},"modified":"2026-09-13T11:03:09","modified_gmt":"2026-09-13T09:03:09","slug":"belt-tensioner-multi-belt-mercedes-r129","status":"publish","type":"product","link":"https:\/\/www.stolkcarparts.com\/en\/product\/riemspanner-multiriem-mercedes-r129\/","title":{"rendered":"Automatic serpentine belt tensioner \u2013 Mercedes R129 Etc. M112 M113 engine"},"content":{"rendered":"

Automatic multi-belt tensioner \u2013 Mercedes various models \u2013 M112 M113 engine<\/h4>\n

Automatic belt tensioner for the serpentine belt of various Mercedes models with M112 and M113 engines<\/strong>. The belt tensioner ensures that the serpentine belt is automatically kept at the correct tension while the engine is running.<\/p>\n

A worn or defective belt tensioner can cause unusual noises, vibrations, and an uneven belt run. When the serpentine belt is insufficiently driven, this can lead to, among other things, reduced engine cooling, insufficient alternator charging capacity and reduced power steering performance<\/strong>.<\/p>\n

Suitable for Mercedes models<\/h5>\n

R129<\/strong><\/p>\n

\u2022 SL 280
\n\u2022 SL 320
\n\u2022 SL 500<\/p>\n

R170<\/strong><\/p>\n

\u2022 SLK 320<\/p>\n

R171<\/strong><\/p>\n

\u2022 SLK 55 AMG<\/p>\n

R230<\/strong><\/p>\n

\u2022 SL 350
\n\u2022 SL 500
\n\u2022 SL 55 AMG<\/p>\n

W140<\/strong><\/p>\n

\u2022 S 320<\/p>\n

W202 \u2013 S202<\/strong><\/p>\n

\u2022 C 240
\n\u2022 C 240 T
\n\u2022 C 280
\n\u2022 C 280 T
\n\u2022 C 43 AMG
\n\u2022 C 43 AMG T<\/p>\n

W203 \u2013 S203 \u2013 CL203<\/strong><\/p>\n

\u2022 C 240
\n\u2022 C 240 4MATIC
\n\u2022 C 240 T
\n\u2022 C 240 T 4MATIC
\n\u2022 C 320
\n\u2022 C 320 4MATIC
\n\u2022 C 320 T
\n\u2022 C 320 T 4MATIC
\n\u2022 C 320 Coup\u00e9
\n\u2022 C 55 AMG
\n\u2022 C 55 AMG T<\/p>\n

C208 \u2013 A208<\/strong><\/p>\n

\u2022 CLK 320 Coup\u00e9
\n\u2022 CLK 320 Convertible
\n\u2022 CLK 430 Coup\u00e9
\n\u2022 CLK 430 Convertible
\n\u2022 CLK 55 AMG Coup\u00e9
\n\u2022 CLK 55 AMG Convertible<\/p>\n

C209 \u2013 A209<\/strong><\/p>\n

\u2022 CLK 240 Coup\u00e9
\n\u2022 CLK 240 Convertible
\n\u2022 CLK 320 Coup\u00e9
\n\u2022 CLK 320 Convertible
\n\u2022 CLK 500 Coup\u00e9
\n\u2022 CLK 500 Convertible
\n\u2022 CLK 55 AMG Coup\u00e9
\n\u2022 CLK 55 AMG Convertible<\/p>\n

C219<\/strong><\/p>\n

\u2022 CLS 500
\n\u2022 CLS 55 AMG<\/p>\n

W210 \u2013 S210<\/strong><\/p>\n

\u2022 E 240
\n\u2022 E 240 T
\n\u2022 E 280
\n\u2022 E 280 T
\n\u2022 E 280 4MATIC
\n\u2022 E 280 T 4MATIC
\n\u2022 E 320
\n\u2022 E 320 T
\n\u2022 E 320 4MATIC
\n\u2022 E 320 T 4MATIC
\n\u2022 E 430
\n\u2022 E 430 T
\n\u2022 E 430 4MATIC
\n\u2022 E 430 T 4MATIC
\n\u2022 E 55 AMG
\n\u2022 E 55 AMG T<\/p>\n

W211 \u2013 S211<\/strong><\/p>\n

\u2022 E 240
\n\u2022 E 240 T
\n\u2022 E 240 4MATIC
\n\u2022 E 240 T 4MATIC
\n\u2022 E 320
\n\u2022 E 320 T
\n\u2022 E 320 4MATIC
\n\u2022 E 320 T 4MATIC
\n\u2022 E 500
\n\u2022 E 500 T
\n\u2022 E 500 4MATIC
\n\u2022 E 500 T 4MATIC
\n\u2022 E 55 AMG
\n\u2022 E 55 AMG T<\/p>\n

W220<\/strong><\/p>\n

\u2022 S 280
\n\u2022 S 320
\n\u2022 S 350
\n\u2022 S 350 4MATIC
\n\u2022 S 430
\n\u2022 S 430 4MATIC
\n\u2022 S 500
\n\u2022 S 500 4MATIC
\n\u2022 S 55 AMG
\n\u2022 S 55 AMG Kompressor<\/p>\n

C215<\/strong><\/p>\n

\u2022 CL 500
\n\u2022 CL 55 AMG
\n\u2022 CL 55 AMG Kompressor<\/p>\n

W163<\/strong><\/p>\n

\u2022 ML 320
\n\u2022 ML 350
\n\u2022 ML 430
\n\u2022 ML 500
\n\u2022 ML 55 AMG<\/p>\n

W164<\/strong><\/p>\n

\u2022 ML 500<\/p>\n

W251<\/strong><\/p>\n

\u2022 R 500 4MATIC<\/p>\n

W463 G-Class<\/strong><\/p>\n

\u2022 G 320
\n\u2022 G 500
\n\u2022 G 55 AMG<\/p>\n

W639<\/strong><\/p>\n

\u2022 Viano 3.2 and 3.7
\n\u2022 Vito 119
\n\u2022 Vito 122
\n\u2022 Vito 123<\/p>\n

Suitable for Mercedes engines<\/h5>\n

M112 engine<\/strong><\/p>\n

\u2022 M112.910, M112.911, M112.912, M112.913, M112.914, M112.915, M112.916, M112.917
\n\u2022 M112.920, M112.921, M112.922, M112.923
\n\u2022 M112.940, M112.941, M112.942, M112.943, M112.944, M112.945, M112.946, M112.947, M112.949
\n\u2022 M112.951, M112.953, M112.954, M112.955
\n\u2022 M112.970, M112.972, M112.973, M112.975, M112.976<\/p>\n

M113 engine<\/strong><\/p>\n

\u2022 M113.940, M113.941, M113.942, M113.943, M113.944, M113.948
\n\u2022 M113.960, M113.961, M113.962, M113.963, M113.964, M113.965, M113.966, M113.967, M113.968, M113.969
\n\u2022 M113.980, M113.981, M113.982, M113.984, M113.986, M113.987, M113.988, M113.989
\n\u2022 M113.990, M113.991, M113.992, M113.993, M113.995<\/p>\n

Specifications<\/h5>\n
    \n
  1. Part: automatic multi-belt tensioner<\/li>\n
  2. Operation: automatic<\/li>\n
  3. Housing material: aluminium<\/li>\n
  4. Tension roller material: plastic<\/li>\n
  5. Tensioner pulley outer diameter: 95 mm<\/li>\n
  6. Tread width: 26 mm<\/li>\n
  7. Suitable for various M112 and M113 engines<\/li>\n
  8. Mercedes OEM number: 1122000970<\/li>\n
  9. Also listed as: A1122000970<\/li>\n<\/ol>\n
    Additional information<\/h5>\n
      \n
    1. Automatically ensures the correct tension of the serpentine belt.<\/li>\n
    2. Compensates for changes in belt tension during use.<\/li>\n
    3. A defective belt tensioner can cause rough belt operation, vibrations, and unusual noises.<\/li>\n
    4. Insufficient drive of the serpentine belt can affect the engine cooling, alternator, and power steering.<\/li>\n
    5. When replacing the serpentine belt, check it for cracks, drying out, wear, and other damage.<\/li>\n
    6. Also check the other guide and tension pulleys for play, unusual noises, and irregular operation.<\/li>\n
    7. In the event of an abnormal belt run, always check the cause first and do not replace only the serpentine belt.<\/li>\n<\/ol>\n

      Always check before purchase and installation whether the part is suitable and equivalent based on photos, description, and specifications; installed or used parts cannot be returned.<\/p>","protected":false},"excerpt":{"rendered":"

      Riemspanner multiriem automatisch –\u00a0 M112 M113 motor<\/h5>\n

      Mercedes R 129 W210 and many other models<\/p>","protected":false},"featured_media":19214,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":""},"product_cat":[2272],"product_tag":[2427,2428,1921,2090,2425,1675,1676,1673,1677,1647,1575,1576,2426,2342,2424,1577,1585,1661,1660,1645,1946,1648,2429,1596,1657,1583,1584,1590,1598,1599,2091,1587,2430],"vehicles":[],"class_list":["post-19212","product","type-product","status-publish","has-post-thumbnail","product_cat-mercedes-motoronderdelen","product_tag-2427","product_tag-a1122000970","product_tag-a208","product_tag-a209","product_tag-automatische-riemspanner","product_tag-c208","product_tag-c209","product_tag-c215","product_tag-c219","product_tag-cl203","product_tag-m112","product_tag-m113","product_tag-mercedes-riemspanner","product_tag-multiriem","product_tag-multiriemspanner","product_tag-r129","product_tag-r170","product_tag-r171","product_tag-r230","product_tag-s202","product_tag-s203","product_tag-s210","product_tag-s211","product_tag-w163","product_tag-w164","product_tag-w202","product_tag-w203","product_tag-w210","product_tag-w211","product_tag-w220","product_tag-w251","product_tag-w463","product_tag-w639","first","instock","taxable","shipping-taxable","purchasable","product-type-simple","add-to-wishlist-after_add_to_cart"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/product\/19212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/comments?post=19212"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/media\/19214"}],"wp:attachment":[{"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/media?parent=19212"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/product_cat?post=19212"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/product_tag?post=19212"},{"taxonomy":"vehicles","embeddable":true,"href":"https:\/\/www.stolkcarparts.com\/en\/wp-json\/wp\/v2\/vehicles?post=19212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}